Sentence 1: Layering additional requirements, such as the outdated power plants provision, on top of a cap and trade program is very likely to increase costs without providing significant environmental benefits.

Sentence 2: Layering more requirements and cap and trade is likely to raise costs.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: The results of these reanalyses confirmed and expanded those of the original investigators.

Sentence 2: The reanalysis results showed major problems with the original investigations.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: There WAS some one in the house!

Sentence 2: Someone came into the house.
Is this second sentence entailed by the first?

Answer:
yes