Sentence 1: A piece claims world population will fall in the next 50 years.

Sentence 2: It's been claimed that world population will fall within 50 years.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Dating from the 17th century, it was a summerhouse for Ambleside Hall, a large mansion built a century earlier, which, sadly, no longer exists.

Sentence 2: Ambleside Hall was built in the 16th century but it was destroyed later.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: The next minute Number 14's hands, horribly dexterous, were winding the cord round his limbs, while Conrad held him down.

Sentence 2: Number 14 was held down without effort.
Is this second sentence entailed by the first?

Answer:
no