Sentence 1: Twenty-eight percent of the families that benefited from the program had incomes below $10,000 and 60 percent were below $20,000.

Sentence 2: 28% of families helped had incomes less than $9000.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: This request reflected a senator's special interest in the Glacier National Park in Montana.

Sentence 2: The request reflected the senator's special interest in the desert.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: There are signs that yet another well-advised retreat is underway.

Sentence 2: There are no signs that a retreat may occur any time soon.
Is this second sentence entailed by the first?

Answer:
no