Triple t1=new Triple(s1a,p1a,o1a);
Triple t2=new Triple(s1b,p1b,o1b);
assertTrue(t1!=t2);
assertEquals(t1,t2);
Economizer<Triple> e=new TripleEconomizer();
Triple t3=e.economize(t1);
Triple t4=e.economize(t2);
assertTrue(t3.getSubject()==t4.getSubject());
assertTrue(t3.getObject()==t4.getObject());
assertTrue(t3.getPredicate()==t4.getPredicate());