added JSON-LD snippets for SPARQL spec, added owl namespace

Author: bergos

scripts/sync-code-snippets.js

@@ -15,11 +15,14 @@ rdf.formats.import(pretty)
 
 const ignore = new Set([
   'shacl12-core/5', // can be removed when https://github.com/rubensworks/jsonld-streaming-parser.js/issues/130 is fixed
-  'shacl12-core/74' // can be removed when RDF/JS parser and serializer support RDF 1.2
+  'shacl12-core/74', // can be removed when RDF/JS parser and serializer support RDF 1.2
+  'shacl12-sparql/3', // can be removed when https://github.com/rubensworks/jsonld-streaming-parser.js/issues/130 is fixed
+  'shacl12-sparql/6', // can be removed when https://github.com/rubensworks/jsonld-streaming-parser.js/issues/130 is fixed
 ])
 
 const jsonldContext = {
   '@context': {
+    owl: 'http://www.w3.org/2002/07/owl#',
     rdf: 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
     rdfs: 'http://www.w3.org/2000/01/rdf-schema#',
     sh: 'http://www.w3.org/ns/shacl#',
@@ -29,6 +32,7 @@ const jsonldContext = {
 }
 
 const turtlePrefixes = `
+@prefix owl: <http://www.w3.org/2002/07/owl#>.
 @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
 @prefix sh: <http://www.w3.org/ns/shacl#>.

shacl12-core/index.html

@@ -610,6 +610,10 @@ <h3>Document Conventions</h3>
 						<th>Prefix</th>
 						<th>Namespace</th>
 					</tr>
+					<tr>
+						<td><code>owl:</code></td>
+						<td><code>http://www.w3.org/2002/07/owl#</code></td>
+					</tr>
 					<tr>
 						<td><code>rdf:</code></td>
 						<td><code>http://www.w3.org/1999/02/22-rdf-syntax-ns#</code></td>
@@ -637,6 +641,7 @@ <h3>Document Conventions</h3>
 				</p>
 				<pre class="jsonld">{
   "@context": {
+    "owl": "http://www.w3.org/2002/07/owl#",
     "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#",
     "rdfs": "http://www.w3.org/2000/01/rdf-schema#",
     "sh": "http://www.w3.org/ns/shacl#",