Sentence 1: Just 20 years ago, young blacks and young whites smoked in equal percentages.

Sentence 2: In the last few years, the proportion of young smokers has shifted to be mostly blacks.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: They meant to kill him somehow, and the defense of him was growing too costly unless there were positive results.

Sentence 2: He will die unless someone spends a lot of money to save him.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: They are also larger and more brilliantly decorated.

Sentence 2: There are no decorated figures there.
Is this second sentence entailed by the first?

Answer:
no