Question: Sentence A: Then I yawned.

Sentence B: I yawned.

If sentence A is true, how about sentence B?

Answer: yes

Question: Sentence A: A huge, fenced-off area is under construction as a zona franca tax-free business development area intended to attract foreign investment.

Sentence B: The foreign investment is also supposed to boost the ailing local economy.

If sentence A is true, how about sentence B?

Answer: it is not possible to tell

Question: Sentence A: Ser Perth, bring food for Dave Hanson!" Ser Perth shook his head sadly.

Sentence B: Ser Perth, take that food away; Dave Hanson doesn't want it.

If sentence A is true, how about sentence B?

Answer: no

Question: Sentence A: he works up in Plano

Sentence B: He does not have a job.

If sentence A is true, how about sentence B?

Answer:
no