// Remove the axiom from the ontology, which creates a change event
OWL.manager.applyChange( new RemoveAxiom( ontologyTBox, axiom ) );
// Now we create a third timer to keep track of the performance of the
// third classification
timers.startTimer( "Third classification" );
classifier.classify();
timers.stopTimer( "Third classification" );
System.out.println( "\nClassification time: " + t.getTotal() + "ms");
System.out.println( "Subclasses of " + pain + ": " + classifier.getSubClasses( pain, true ).getFlattened() + "\n");