Sentence 1: He felt that it would be a mistake to open this set of research recommendations with a recommendation that included screening for withdrawal or other conditions.

Sentence 2: He thought it was best to recommend to withdraw.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: So much for the cruel stereotype of the pea-brained dinosaur.

Sentence 2: The stereotype of small brained dinosaurs has been over reported.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: He was engaged in wondering how Mr. Brown had discovered his identity.

Sentence 2: He didn't care if Mr. Brown discovered his identity.
Is this second sentence entailed by the first?

Answer:
no