Sentence 1: Here's a place we might start.

Sentence 2: You could maybe start here or another place.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: She was very generous, but she always wanted a return.

Sentence 2: She was very greedy, taking all the money for only herself.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: The ability of a system or component to perform itsReliability required functions under stated conditions for a stated period of time.

Sentence 2: A system needs to perform its required functions or be able to invent new functions.
Is this second sentence entailed by the first?

Answer:
no