Statement stmt = ont.createStatement( o1, p3, s1 );
assertIteratorContains( o1.listPropertyValues( p3 ), s1 );
assertTrue( ont.contains( stmt ) );
assertIteratorContains( ont.listStatements( null, p3, (RDFNode) null ), stmt );
assertIteratorContains( ont.listStatements( o1, null, (RDFNode) null ), stmt );
assertIteratorContains( ont.listStatements(), stmt );
assertFalse( ont.contains( o3, p1, s3 ) );
assertTrue( p2.isInverseOf( p3 ) );
assertIteratorValues( p2.listInverseOf(), new Property[] { p3 } );
assertTrue( p3.isInverseOf( p2 ) );