Sentence 1: In politics, it means that if you can't tolerate flip-flops, you'd better start getting comfortable with absolute dictatorship.

Sentence 2: If you can't tolerate flip-flops, in politics it means that you'd better start getting comfortable with absolute dictatorship.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: The intervention, which lasted 30 to 40 minutes, was delivered in the emergency department either immediately or within a couple of days of the visit.

Sentence 2: The intervention lasted hours.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Her last husband, and manager, George Richey, was more than overcome by her death.

Sentence 2: She had been married to Richey for twenty two years.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell