Question: Sentence A: Before, or after?"

Sentence B: During the event?

If sentence A is true, how about sentence B?

Answer: no

Question: Sentence A: Mr. Poirot, here, will show me the way." As they all went out of the room, Poirot turned and made me a sign to follow him upstairs.

Sentence B: They all exited the room and went outside.

If sentence A is true, how about sentence B?

Answer: it is not possible to tell

Question: Sentence A: i thought that was just great

Sentence B: I think that is just horrendous.

If sentence A is true, how about sentence B?

Answer: no

Question: Sentence A: As a practical matter, mailers are believed in many cases to be able to do this work for a fraction of the cost the postal service would face.

Sentence B: Mailers are believed to be cheaper than the postal service.

If sentence A is true, how about sentence B?

Answer:
yes