Sentence 1: He rose as they entered.

Sentence 2: He remained seated even when they entered.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: um-hum i have a girl and a boy and the boy's five he's in kindergarten and the girl is four she'll be in kindergarten next year

Sentence 2: I have two children aged four and five.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Postal administrations, however, are often under constraints that limit their ability to respond to such pressure.

Sentence 2: Postal adminisrators have unlimited resources.
Is this second sentence entailed by the first?

Answer:
no