Sentence 1: Any nation determined to explode a nuclear bomb in Uncle Sam's front yard would have to be insane to deliver the insult by missile--it might as well affix a return address to the weapon before firing.

Sentence 2: It would be insane for a nation to deliver a nuclear bomb to the united states by submarine.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Apart from the flat, well-populated coastal area, much of Provence is hilly, with small towns and villages that seem unchanged by the passage of time.

Sentence 2: The coasts of Provence are sparsely populated with most of the people living in big inland cities.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: The SEC received 97 comments to the proposed rulemaking.

Sentence 2: The proposed rulemaking received 97 comments from the SEC.
Is this second sentence entailed by the first?

Answer:
yes