Sentence 1: But none of these revelations improves the case that Hollywood Communism was a significant threat to democracy.

Sentence 2: The revelations improved the case that Hollywood Communism was never a threat to democracy.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: They play a shell Take this part of the Social Security tax and convert it into a mandatory savings contribution; take today's benefit and divide it into two parts; give everybody this new account and that minimum guarantee; take this shell and put it there and bring that shell over here, and--hey presto!

Sentence 2: They play a shell game.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Sumo tournaments are held in January, May, and September at the Kuramae Kokugikan in Tokyo, during March in Osaka, in July in Nagoya, and in November in Fukuoka (Kyushu).

Sentence 2: Sumo tournaments are held in specific months.
Is this second sentence entailed by the first?

Answer:
yes