Sentence 1: The conservative British journalist, known for his mammoth histories, writes an old-fashioned Great Man chronicle of the United States.

Sentence 2: The journalist had been writing for 15 years.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: (without fringe benefits) was $24,076 for full-time U.S. workers in that year.

Sentence 2: Fringe benefits are not included.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: She called the man she had been talking to.

Sentence 2: She called the man she had been conversing with, hoping to get more information about the accident.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell