Sentence 1: He still kept his eyes fixed on him as he spoke.

Sentence 2: He read a book while he was speaking to him.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: He wept and cried out.

Sentence 2: He sobbed over his dead friend.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The boats go on to the friendly fishermen's island of Tap Mun, in Mirs Bay, with stops in remote hamlets of the Sai Kung Peninsula.

Sentence 2: There are no stops along the way to Tap Mun.
Is this second sentence entailed by the first?

Answer:
no