Sentence 1: Remember, holiday-time isn't always all playtime.

Sentence 2: Not every holiday is playtime.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Houseboats are a beautifully preserved tradition of the heyday of the British Raj.

Sentence 2: Houseboats were invented by the British in India.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: for the whole school you know it was just this big project she didn't want to get into that and i could do it in the center and i just never got around to it

Sentence 2: I had planned on doing the project for her and giving her all the credit.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell