Sentence 1: Easter and the Totem(1953) collapses back to Totem Lesson 1 (1944).

Sentence 2: Easter and the Totem traces back to Alice in Wonderland.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: yeah already have foreign cars

Sentence 2: I have foreign cars.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: I had never understood his insistence on that point.

Sentence 2: I didn't undrestand why he clung to that idea.
Is this second sentence entailed by the first?

Answer:
yes