Sentence 1: Kilmainham was the major Irish prison for well over a century; De Valera was the last prisoner (in 1924).

Sentence 2: Da Valera was the last prisoner in 1924 held in Kilmainham.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Or an archaeologist in the Yucatan who flies her own plane and owns a supper club called The Fuzzy Slipper.

Sentence 2: An archaeologist owns a supper club that serves great margaritas.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Significant cost savings can be achieved for power generators and consumers through a comprehensive legislative package.

Sentence 2: Big cost savings can never be obtained through legislating.
Is this second sentence entailed by the first?

Answer:
no