Sentence 1: The green and fertile region round Naples, between the Tyrrhenian coast and the western slopes of the Apennines, was colonized by the Etruscans and Greeks.

Sentence 2: The region around Naples is very fertile.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: We adopted a 3 percent discount rate for our Base analysis in this case to reflect reliance on a social rate of time preference discounting concept.

Sentence 2: Our Base analysis discount rate amounted to 3 percent.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: His mind groped for something that almost came into his consciousness--some inkling of what should have been done, or how they had failed.

Sentence 2: Building a house out of scrap wood and rocks had seemed like it should be such an easy job.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell