Sentence 1: Probably founded by the Indo-Aryans around 1000 b.c. , the city was established from earliest times as a famous seat of learning for Hindu thinkers, theologians, philosophers, and poets alike.

Sentence 2: Indo-Aryans likely founded the city around 3000 years ago.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: In Russia, under the headline Reds in the White House?

Sentence 2: The Russian headline reads "Reds in the White House".
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: This also has been done.

Sentence 2: It hadn't been done
Is this second sentence entailed by the first?

Answer:
no