Sentence 1: is expensive uh-huh

Sentence 2: I wish it cost less.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: He knows whether the charges in the Hersh story are true, and that's why he's in such a quandary.

Sentence 2: He doesn't know the truth.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: The Kal looked at Ca'daan and gave him one of his strange twisted smiles.

Sentence 2: The Kal averted his eyes from Ca'daan.
Is this second sentence entailed by the first?

Answer:
no