--- a/rdf-primer/index.html	Fri Feb 21 10:53:55 2014 +0000
+++ b/rdf-primer/index.html	Fri Feb 21 11:10:56 2014 +0000
@@ -962,19 +962,19 @@
 <p>
 
       <pre class="example" title="JSON-LD">
-<span class="linenum">01</span>  {
-<span class="linenum">02</span>    "@context": "example-context.json",
-<span class="linenum">03</span>    "@id": "http://example.org/bob#me",
-<span class="linenum">04</span>    "@type": "Person",
-<span class="linenum">05</span>    "birthdate": "1990-07-04",
-<span class="linenum">06</span>    "knows": "http://example.org/alice#me",
-<span class="linenum">07</span>    "interest": {
-<span class="linenum">08</span>      "@id": "http://www.wikidata.org/entity/Q12418",
-<span class="linenum">09</span>      "title": "Mona Lisa",
-<span class="linenum">10</span>      "subject_of": "http://data.europeana.eu/item/04802/243FA8618938F4117025F17A8B813C5F9AA4D619",
-<span class="linenum">11</span>      "creator": "http://dbpedia.org/resource/Leonardo_da_Vinci"
-<span class="linenum">12</span>    }
-<span class="linenum">13</span>  }
+<span class="linenum">01</span>    {
+<span class="linenum">02</span>      "@context": "example-context.json",
+<span class="linenum">03</span>      "@id": "http://example.org/bob#me",
+<span class="linenum">04</span>      "@type": "Person",
+<span class="linenum">05</span>      "birthdate": "1990-07-04",
+<span class="linenum">06</span>      "knows": "http://example.org/alice#me",
+<span class="linenum">07</span>      "interest": {
+<span class="linenum">08</span>        "@id": "http://www.wikidata.org/entity/Q12418",
+<span class="linenum">09</span>        "title": "Mona Lisa",
+<span class="linenum">10</span>        "subject_of": "http://data.europeana.eu/item/04802/243FA8618938F4117025F17A8B813C5F9AA4D619",
+<span class="linenum">11</span>        "creator": "http://dbpedia.org/resource/Leonardo_da_Vinci"
+<span class="linenum">12</span>      }
+<span class="linenum">13</span>    }
       </pre>
 
       <p>The <code>@context</code> key on line 2
@@ -983,8 +983,10 @@
       Each JSON object corresponds to an RDF resource. In this example 
       the main resource being described is
       <code>http://example.org/bob#me</code>, as
-      specified on line 3 through the use of the <code>@id</code> keyword.
-      We describe its type on line 4, its birth date
+      specified on line 3, through the use of the <code>@id</code> keyword.
+      The <code>@id</code> keyword, when used as a key in a JSON-LD document, points
+      to an IRI identifying the resource corresponding to the parent JSON object.
+      We describe the type of this resource on line 4, its birth date
       on line 5 and one of its friends on line 6. From line 7 to 12 we describe 
       one of its interests, the Mona Lisa painting.</p>
 
@@ -996,31 +998,31 @@
       <p>The JSON-LD context used in this example is given below.</p>
 
 <pre class="example" title="JSON-LD context specification">
-<span class="linenum">01</span>  {
-<span class="linenum">02</span>    "@context": {
-<span class="linenum">03</span>      "foaf": "http://xmlns.com/foaf/0.1/", 
-<span class="linenum">04</span>      "Person": "foaf:Person",
-<span class="linenum">05</span>      "interest": "foaf:topic_interest",
-<span class="linenum">06</span>      "knows": {
-<span class="linenum">07</span>        "@id": "foaf:knows",
-<span class="linenum">08</span>        "@type": "@id"
-<span class="linenum">09</span>      },
-<span class="linenum">10</span>      "birthdate": {
-<span class="linenum">11</span>        "@id": "http://schema.org/birthDate",
-<span class="linenum">12</span>        "@type": "http://www.w3.org/2001/XMLSchema#date"
-<span class="linenum">13</span>      },
-<span class="linenum">14</span>      "dcterms": "http://purl.org/dc/terms/",
-<span class="linenum">15</span>      "title": "dcterms:title",
-<span class="linenum">16</span>      "creator": {
-<span class="linenum">17</span>        "@id": "dcterms:creator",
-<span class="linenum">18</span>        "@type": "@id"
-<span class="linenum">19</span>      },
-<span class="linenum">20</span>      "subject_of": {
-<span class="linenum">21</span>        "@reverse": "dcterms:subject",
-<span class="linenum">22</span>        "@type": "@id"
-<span class="linenum">23</span>      }
-<span class="linenum">24</span>    }
-<span class="linenum">25</span>  }
+<span class="linenum">01</span>    {
+<span class="linenum">02</span>      "@context": {
+<span class="linenum">03</span>        "foaf": "http://xmlns.com/foaf/0.1/", 
+<span class="linenum">04</span>        "Person": "foaf:Person",
+<span class="linenum">05</span>        "interest": "foaf:topic_interest",
+<span class="linenum">06</span>        "knows": {
+<span class="linenum">07</span>          "@id": "foaf:knows",
+<span class="linenum">08</span>          "@type": "@id"
+<span class="linenum">09</span>        },
+<span class="linenum">10</span>        "birthdate": {
+<span class="linenum">11</span>          "@id": "http://schema.org/birthDate",
+<span class="linenum">12</span>          "@type": "http://www.w3.org/2001/XMLSchema#date"
+<span class="linenum">13</span>        },
+<span class="linenum">14</span>        "dcterms": "http://purl.org/dc/terms/",
+<span class="linenum">15</span>        "title": "dcterms:title",
+<span class="linenum">16</span>        "creator": {
+<span class="linenum">17</span>          "@id": "dcterms:creator",
+<span class="linenum">18</span>          "@type": "@id"
+<span class="linenum">19</span>        },
+<span class="linenum">20</span>        "subject_of": {
+<span class="linenum">21</span>          "@reverse": "dcterms:subject",
+<span class="linenum">22</span>          "@type": "@id"
+<span class="linenum">23</span>        }
+<span class="linenum">24</span>      }
+<span class="linenum">25</span>    }
 </pre>
 
       <p>This context describes how a JSON-LD document can be mapped