Sentence 1: If he had to use too much force, it would almost certainly creak.

Sentence 2: Even if he had to use too much force, it would not make a sound.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Clinton criticized the military bill for including budget gimmicks and pork-barrel projects but said that he could not allow our national security needs to be held hostage by this budget battle.

Sentence 2: If the budget battle continues, out security will be at risk.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Similarly, her title teases her readers, inviting us to draw parallels between her personal history and the story she tells in the novel, though she declines to supply the necessary details about her life.

Sentence 2: Similarly, her title teases readers by inviting us to draw parallels between her history and the story she tells in the novel.
Is this second sentence entailed by the first?

Answer:
yes