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diff --git a/vendor/easyrdf/easyrdf/lib/EasyRdf/Parser/Arc.php b/vendor/easyrdf/easyrdf/lib/EasyRdf/Parser/Arc.php
new file mode 100644
index 000000000..b4e5e1ef5
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+++ b/vendor/easyrdf/easyrdf/lib/EasyRdf/Parser/Arc.php
@@ -0,0 +1,96 @@
+<?php
+
+/**
+ * EasyRdf
+ *
+ * LICENSE
+ *
+ * Copyright (c) 2009-2013 Nicholas J Humfrey.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. The name of the author 'Nicholas J Humfrey" may be used to endorse or
+ *    promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package    EasyRdf
+ * @copyright  Copyright (c) 2009-2013 Nicholas J Humfrey
+ * @license    http://www.opensource.org/licenses/bsd-license.php
+ */
+
+/**
+ * Class to parse RDF using the ARC2 library.
+ *
+ * @package    EasyRdf
+ * @copyright  Copyright (c) 2009-2013 Nicholas J Humfrey
+ * @license    http://www.opensource.org/licenses/bsd-license.php
+ */
+class EasyRdf_Parser_Arc extends EasyRdf_Parser_RdfPhp
+{
+    private static $supportedTypes = array(
+        'rdfxml' => 'RDFXML',
+        'turtle' => 'Turtle',
+        'ntriples' => 'Turtle',
+        'rdfa' => 'SemHTML',
+    );
+
+    /**
+     * Constructor
+     *
+     * @return object EasyRdf_Parser_Arc
+     */
+    public function __construct()
+    {
+        require_once 'arc/ARC2.php';
+    }
+
+    /**
+      * Parse an RDF document into an EasyRdf_Graph
+      *
+      * @param object EasyRdf_Graph $graph   the graph to load the data into
+      * @param string               $data    the RDF document data
+      * @param string               $format  the format of the input data
+      * @param string               $baseUri the base URI of the data being parsed
+      * @return integer             The number of triples added to the graph
+      */
+    public function parse($graph, $data, $format, $baseUri)
+    {
+        parent::checkParseParams($graph, $data, $format, $baseUri);
+
+        if (array_key_exists($format, self::$supportedTypes)) {
+            $className = self::$supportedTypes[$format];
+        } else {
+            throw new EasyRdf_Exception(
+                "EasyRdf_Parser_Arc does not support: $format"
+            );
+        }
+
+        $parser = ARC2::getParser($className);
+        if ($parser) {
+            $parser->parse($baseUri, $data);
+            $rdfphp = $parser->getSimpleIndex(false);
+            return parent::parse($graph, $rdfphp, 'php', $baseUri);
+        } else {
+            throw new EasyRdf_Exception(
+                "ARC2 failed to get a $className parser."
+            );
+        }
+    }
+}