public void testOpenGraphStructuredProperties() throws IOException, ExtractionException, RepositoryException {
assertExtract("/html/rdfa/opengraph-structured-properties.html");
logger.info( dumpHumanReadableTriples() );
Assert.assertEquals(8, getStatementsSize(null, null, null) );
final OGP vOGP = OGP.getInstance();
assertContains(baseURI, vOGP.audio, RDFUtils.literal("http://example.com/bond/theme.mp3") );
assertContains(
baseURI,
vOGP.description,
RDFUtils.literal(