Sentence 1: Could it be that the rise in stock values reflects the ongoing shift, from labor to capital, of the return to production in our economy?

Sentence 2: Does a rise in the stock values indicate that the company is doing better?
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: She was sitting with her back to me, so I couldn't see her face.

Sentence 2: Her face was obscured because she had her back to me.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: 'Psst, this way.'

Sentence 2: Come over here.
Is this second sentence entailed by the first?

Answer:
yes