Sentence 1: He winked knowingly to his own self in four years time.

Sentence 2: He was solemn.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: oh they're just gorgeous but yeah three hundred and fifty dollars for a kitten and i think of those i think of the kittens at the pound

Sentence 2: The kitten was cheap in comparison to the siamese cat he had previously owned.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Although C-R functions are available to estimate health effects of exposure to nitrogen oxides

Sentence 2: Exposure to nitrogen oxides cause no health effects.
Is this second sentence entailed by the first?

Answer:
no