Sentence 1: In politics, the yang predominates.

Sentence 2: Ying and yang should be perfectly balanced, but they are not.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: yes they are well that's about five minutes so unless you've got something else well

Sentence 2: That's about fifteen minutes.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: He allowed his to do the same.

Sentence 2: He allowed his workers to look around also.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell