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<section id="presearch-engine">
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<span id="engine-presearch"></span><h1>Presearch Engine<a class="headerlink" href="#presearch-engine" title="Link to this heading">¶</a></h1>
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<nav class="contents local" id="contents">
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<ul class="simple">
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<li><p><a class="reference internal" href="#search-type-video" id="id1">Search type <code class="docutils literal notranslate"><span class="pre">video</span></code></a></p></li>
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<li><p><a class="reference internal" href="#languages-regions" id="id2">Languages & Regions</a></p></li>
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<li><p><a class="reference internal" href="#implementations" id="id3">Implementations</a></p></li>
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<p id="module-searx.engines.presearch">Presearch supports the search types listed in <a class="reference internal" href="#searx.engines.presearch.search_type" title="searx.engines.presearch.search_type"><code class="xref py py-obj docutils literal notranslate"><span class="pre">search_type</span></code></a> (general,
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images, videos, news).</p>
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<p>Configured <code class="docutils literal notranslate"><span class="pre">presarch</span></code> engines:</p>
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<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">presearch</span>
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<span class="w"> </span><span class="nt">engine</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">presearch</span>
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<span class="w"> </span><span class="nt">search_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">search</span>
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<span class="w"> </span><span class="nt">categories</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="nv">general</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="nv">web</span><span class="p p-Indicator">]</span>
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<span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">presearch images</span>
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<span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">...</span>
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<span class="w"> </span><span class="nt">search_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">images</span>
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<span class="w"> </span><span class="nt">categories</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="nv">images</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="nv">web</span><span class="p p-Indicator">]</span>
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<span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">presearch videos</span>
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<span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">...</span>
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<span class="w"> </span><span class="nt">search_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">videos</span>
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<span class="w"> </span><span class="nt">categories</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="nv">general</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="nv">web</span><span class="p p-Indicator">]</span>
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<span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">presearch news</span>
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<span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">...</span>
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<span class="w"> </span><span class="nt">search_type</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">news</span>
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<span class="w"> </span><span class="nt">categories</span><span class="p">:</span><span class="w"> </span><span class="p p-Indicator">[</span><span class="nv">news</span><span class="p p-Indicator">,</span><span class="w"> </span><span class="nv">web</span><span class="p p-Indicator">]</span>
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</pre></div>
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</div>
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<div class="admonition hint">
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<p class="admonition-title">Hint</p>
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<p>By default Presearch’s video category is intentionally placed into:</p>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">categories</span><span class="p">:</span> <span class="p">[</span><span class="n">general</span><span class="p">,</span> <span class="n">web</span><span class="p">]</span>
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</pre></div>
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</div>
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</div>
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<section id="search-type-video">
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<h2><a class="toc-backref" href="#id1" role="doc-backlink">Search type <code class="docutils literal notranslate"><span class="pre">video</span></code></a><a class="headerlink" href="#search-type-video" title="Link to this heading">¶</a></h2>
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<p>The results in the video category are most often links to pages that contain a
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video, for instance many links from Preasearch’s video category link content
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from facebook (aka Meta) or Twitter (aka X). Since these are not real links to
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video streams SearXNG can’t use the video template for this and if SearXNG can’t
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use this template, then the user doesn’t want to see these hits in the videos
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category.</p>
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</section>
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<section id="languages-regions">
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<h2><a class="toc-backref" href="#id2" role="doc-backlink">Languages & Regions</a><a class="headerlink" href="#languages-regions" title="Link to this heading">¶</a></h2>
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<p>In Presearch there are languages for the UI and regions for narrowing down the
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search. If we set “auto” for the region in the WEB-UI of Presearch and cookie
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<code class="docutils literal notranslate"><span class="pre">use_local_search_results=false</span></code>, then the defaults are set for both (the
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language and the region) from the <code class="docutils literal notranslate"><span class="pre">Accept-Language</span></code> header.</p>
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<p>Since the region is already “auto” by default, we only need to set the
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<code class="docutils literal notranslate"><span class="pre">use_local_search_results</span></code> cookie and send the <code class="docutils literal notranslate"><span class="pre">Accept-Language</span></code> header. We
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have to set these values in both requests we send to Presearch; in the first
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request to get the request-ID from Presearch and in the final request to get the
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result list (see <code class="docutils literal notranslate"><span class="pre">send_accept_language_header</span></code>).</p>
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</section>
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<section id="implementations">
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<h2><a class="toc-backref" href="#id3" role="doc-backlink">Implementations</a><a class="headerlink" href="#implementations" title="Link to this heading">¶</a></h2>
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</section>
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<dl class="py data">
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<dt class="sig sig-object py" id="searx.engines.presearch.search_type">
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<span class="sig-prename descclassname"><span class="pre">searx.engines.presearch.</span></span><span class="sig-name descname"><span class="pre">search_type</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'search'</span></em><a class="headerlink" href="#searx.engines.presearch.search_type" title="Link to this definition">¶</a></dt>
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<dd><p>must be any of <code class="docutils literal notranslate"><span class="pre">search</span></code>, <code class="docutils literal notranslate"><span class="pre">images</span></code>, <code class="docutils literal notranslate"><span class="pre">videos</span></code>, <code class="docutils literal notranslate"><span class="pre">news</span></code></p>
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</dd></dl>
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</section>
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<h3><a href="../../../index.html">Table of Contents</a></h3>
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<ul class="current">
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<li class="toctree-l1"><a class="reference internal" href="../../../user/index.html">User information</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../../own-instance.html">Why use a private instance?</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../../../admin/index.html">Administrator documentation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../rtm_asdf.html">Runtime Management</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../../contribution_guide.html">How to contribute</a></li>
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<li class="toctree-l2 current"><a class="reference internal" href="../index.html">Engine Implementations</a><ul class="current">
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<li class="toctree-l3"><a class="reference internal" href="../enginelib.html">Engine Library</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../engines.html">SearXNG’s engines loader</a></li>
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<li class="toctree-l3"><a class="reference internal" href="../engine_overview.html">Engine Overview</a></li>
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<li class="toctree-l3 current"><a class="reference internal" href="../index.html#engine-types">Engine Types</a><ul class="current">
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<li class="toctree-l4 current"><a class="reference internal" href="../index.html#online-engines">Online Engines</a><ul class="current">
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<li class="toctree-l5"><a class="reference internal" href="../demo/demo_online.html">Demo Online Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../xpath.html">XPath Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="../mediawiki.html">MediaWiki Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="adobe_stock.html">Adobe Stock</a></li>
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<li class="toctree-l5"><a class="reference internal" href="alpinelinux.html">Alpine Linux Packages</a></li>
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<li class="toctree-l5"><a class="reference internal" href="annas_archive.html">Anna’s Archive</a></li>
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<li class="toctree-l5"><a class="reference internal" href="archlinux.html">Arch Linux</a></li>
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<li class="toctree-l5"><a class="reference internal" href="bing.html">Bing Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="bpb.html">Bpb</a></li>
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<li class="toctree-l5"><a class="reference internal" href="brave.html">Brave Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="bt4g.html">BT4G</a></li>
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<li class="toctree-l5"><a class="reference internal" href="dailymotion.html">Dailymotion</a></li>
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<li class="toctree-l5"><a class="reference internal" href="discourse.html">Discourse Forums</a></li>
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<li class="toctree-l5"><a class="reference internal" href="duckduckgo.html">DuckDuckGo Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="geizhals.html">Geizhals</a></li>
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<li class="toctree-l5"><a class="reference internal" href="gitea.html">Gitea</a></li>
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<li class="toctree-l5"><a class="reference internal" href="gitlab.html">GitLab</a></li>
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<li class="toctree-l5"><a class="reference internal" href="google.html">Google Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="lemmy.html">Lemmy</a></li>
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<li class="toctree-l5"><a class="reference internal" href="loc.html">Library of Congress</a></li>
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<li class="toctree-l5"><a class="reference internal" href="mastodon.html">Mastodon</a></li>
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<li class="toctree-l5"><a class="reference internal" href="moviepilot.html">Moviepilot</a></li>
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<li class="toctree-l5"><a class="reference internal" href="mrs.html">Matrix Rooms Search (MRS)</a></li>
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<li class="toctree-l5"><a class="reference internal" href="mullvad_leta.html">Mullvad-Leta</a></li>
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<li class="toctree-l5"><a class="reference internal" href="mwmbl.html">Mwmbl Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="odysee.html">Odysee</a></li>
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<li class="toctree-l5"><a class="reference internal" href="peertube.html">Peertube Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="piped.html">Piped</a></li>
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<li class="toctree-l5 current"><a class="current reference internal" href="#">Presearch Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="qwant.html">Qwant</a></li>
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<li class="toctree-l5"><a class="reference internal" href="radio_browser.html">RadioBrowser</a></li>
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<li class="toctree-l5"><a class="reference internal" href="recoll.html">Recoll Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="seekr.html">Seekr Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="startpage.html">Startpage Engines</a></li>
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<li class="toctree-l5"><a class="reference internal" href="tagesschau.html">Tagesschau API</a></li>
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<li class="toctree-l5"><a class="reference internal" href="torznab.html">Torznab WebAPI</a></li>
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<li class="toctree-l5"><a class="reference internal" href="void.html">Void Linux binary packages</a></li>
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<li class="toctree-l5"><a class="reference internal" href="wallhaven.html">Wallhaven</a></li>
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<li class="toctree-l5"><a class="reference internal" href="wikipedia.html">Wikimedia</a></li>
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<li class="toctree-l5"><a class="reference internal" href="yacy.html">Yacy</a></li>
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<li class="toctree-l5"><a class="reference internal" href="yahoo.html">Yahoo Engine</a></li>
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<li class="toctree-l5"><a class="reference internal" href="zlibrary.html">Z-Library</a></li>
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</ul>
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</li>
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<li class="toctree-l4"><a class="reference internal" href="../index.html#offline-engines">Offline Engines</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../index.html#online-url-search">Online URL Search</a></li>
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<li class="toctree-l4"><a class="reference internal" href="../index.html#online-currency">Online Currency</a></li>
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