p.setFeature(Feature.TENSE, Tense.PAST);
String output = realiser.realiseSentence(p);
Assert.assertEquals("Mary chased George.", output);
p.setFeature(Feature.TENSE, Tense.FUTURE);
output = realiser.realiseSentence(p);
Assert.assertEquals("Mary will chase George.", output);
p.setFeature(Feature.NEGATED, true);
output = realiser.realiseSentence(p);
Assert.assertEquals("Mary will not chase George.", output);