Exercise
Tell the semantic relation within the given sentence and that between the two sentences.
1) My uncle is male.
2) The spinster is married.
3) Jim is an orphan. Jim lives with his parents.
4) Sam is the husband of Sally. Sally is the wife of Sam.
5) He has gone to London. He has gone to England.
6) He has given up smoking. He smoked before.
1) Tautology
2) Contradiction
3) Inconsistency
4) Synonymy
5) Entailment
6) presupposition