InferredRel inf = new InferredRel(trigger, eff);
infEnv.addRule(inf);
RelationshipPredicate find = new RelationshipPredicate(relations[0], new SpecVar[] {new SpecVar("a"), new SpecVar("a")});
Substitution sub = new Substitution();
sub = sub.addSub(new SpecVar("a"), labels[0]);
RelationshipDelta delta = env.getInferredDelta(find, sub);
assertNotNull(delta);
SevenPointLattice val = delta.getValue(new Relationship(relations[0], new ObjectLabel[] {labels[0], labels[0]}));
assertEquals(SevenPointLattice.TRU, val);