Sentence 1: GAO relies on a workforce of highly trained professionals who hold degrees in many academic disciplines, such as accounting, law, engineering, public and business administration, economics, and the social and physical sciences.

Sentence 2: Masters degrees are required regardless of academic background.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Now there's just a chance, I admit it's only a chance, that this woman may have been 'Rita.'

Sentence 2: There is a possibility that Rita is this woman.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Also on the Strip, The Fashion Show Mall was for years the only high-fashion shopping source for tourists and residents with excess cash.

Sentence 2: The Fashion Show Mall had a monopoly on shopping.
Is this second sentence entailed by the first?

Answer:
yes