Sentence 1: It isn't true!

Sentence 2: Nobody knows the truth.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: You're not likely to find warriors willing to talk for free, much less fight for you, but the Warrior's Court is where those who swing swords reside.

Sentence 2: Warriors are selfless.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Poirot shrugged his shoulders.

Sentence 2: Poirot did not move a muscle.
Is this second sentence entailed by the first?

Answer:
no