Sentence 1: Clinton needed Ickes to help him shore up his liberal base and prevent a Democratic-primary challenge.

Sentence 2: Clinton is concerned that, without Ickes, his campaign could fail.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: you don't feel you don't feel guilty about it

Sentence 2: You do not feel guilty about it.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: A Dutch and British cemetery is to be found farther down the hill.

Sentence 2: The cemetery has a large wrought iron gate.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell