// See also: http://cvsdude.com/trac/clark-parsia/pellet-devel/ticket/7
KnowledgeBase kb = new KnowledgeBase();
ATermAppl c = term( "c" );
kb.addClass( c );
kb.addSubClass( ATermUtils.BOTTOM, c );
kb.classify();
assertTrue( kb.isSubClassOf( ATermUtils.BOTTOM, c ) );
}