Sentence 1: Although sulfur deposition has declined, nitrogen emissions have not changed substantially region-wide.

Sentence 2: Nitrogen emissions are still at the same level, unlike sulfur deposition.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: But Fraser disappeared mysteriously before the hill station came into being, in 1910.

Sentence 2: The hill station was on top of a hill.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: He picked up the khaki shirt and put it on; then, with growing curiosity, the rest of the garments, until he came to the shoes.

Sentence 2: He took everything off and hopped in the bath.
Is this second sentence entailed by the first?

Answer:
no