Sentence 1: Because the catcher calls the game, he must know the hitting abilities and weaknesses of every opposing batter.

Sentence 2: The catcher knows nothing about the other teams batter.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: College students, drop your pencils!

Sentence 2: Drop your pencils because time is up.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Once Congress agrees to regulate one sort of abortion because it is gruesome, the pro-lifers will immediately turn to another form of abortion and insist that it, too, be regulated, because it, too, is gruesome.

Sentence 2: The pro-lifers will immediately turn to another form of abortion, once congress agrees to regulate one sort of abortion for the reason of it being gruesome.
Is this second sentence entailed by the first?

Answer:
yes