Sentence 1: Welldeveloped techniques exist to provide monetary estimates of these benefits to agricultural producers and consumers.

Sentence 2: There are no accurate techniques to give monetary estimates of these benefits to consumers and producers.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: uh-huh best friends now yes

Sentence 2: They're best friends and are together every day.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: I can't resist mentioning a related issue.

Sentence 2: I can mention an unrelated topic as well as a related one.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell