KnowledgeBase kb = new KnowledgeBase();
kb.addIndividual( term( "x" ) );
kb.addClass( term( "C" ) );
kb.addClass( term( "D" ) );
kb.addDatatypeProperty( term( "p" ) );
kb.addFunctionalProperty( term( "p" ) );
kb.addSubClass( term( "C" ), ATermUtils.makeSomeValues( term( "p" ), ATermUtils