| <!doctype html> | 
 | <html> | 
 | <head> | 
 | <title>Ensure Vocabulary JSON-LD is valid</title> | 
 | <script src="/resources/testharness.js"></script> | 
 | <script src="/resources/testharnessreport.js"></script> | 
 | </head> | 
 | <body> | 
 |  <p>The Annotation Vocabulary JSON-LD context is defined to be at http://www.w3.org/ns/oa</p> | 
 |  <p>Retrieve that context document and expand the following example using a JSON-LD validation tool. Does it expand?</p> | 
 |  <pre> | 
 | { | 
 |  "@context": "http://www.w3.org/ns/anno.jsonld", | 
 |  "id": "http://example.org/anno4", | 
 |  "type": "Annotation", | 
 |  "body": "http://example.org/description1", | 
 |  "target": { | 
 |  "id": "http://example.com/image1#xywh=100,100,300,300", | 
 |  "type": "Image", | 
 |  "format": "image/jpeg" | 
 |  } | 
 | } | 
 | </pre> | 
 | </body> | 
 | </html> |