Question: Sentence A: Maybe they've gone abroad to Poland, or something like that?" Tuppence shook her head.

Sentence B: Tuppence is shaking her head, and is unsure where they might have gone.

If sentence A is true, how about sentence B?

Answer: yes

Question: Sentence A: Daughter-in-Law

Sentence B: She is the daughter-in-law.

If sentence A is true, how about sentence B?

Answer: yes

Question: Sentence A: The remaining population is based mainly in the south, around the capital, Pigadia, which is relatively modern by Greek standards (built since the mid-19th century).

Sentence B: The capital, Pigadia, is modern by Greek standards and the population is based around it.

If sentence A is true, how about sentence B?

Answer: yes

Question: Sentence A: The argument is subtle and carefully developed, lacking anything even faintly resembling the wild claims or irrational speculation that a lunatic might produce.

Sentence B: They worked hard to devise their argument against gay marriage.

If sentence A is true, how about sentence B?

Answer:
it is not possible to tell