Sentence 1: no i did have i don't have it now but i have mostly Teflon

Sentence 2: I did have it, but now have mostly Teflon.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: But spinning is an excellent reminder of how far toward real transparency the Street still has to go.

Sentence 2: The Street will never be fully transparent.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: I think "I am sure "he cared for me at first.

Sentence 2: I am sure that he never did care for me
Is this second sentence entailed by the first?

Answer:
no