Sentence 1: There are a variety of routes, which can last from a morning to several days.

Sentence 2: There is only one route.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Democrats complain that given the amount of time they spend with Geraldo, diGenova and Toensing can't possibly be doing their government job.

Sentence 2: It is inappropriate for diGenova and Toensing to spend so much time with Geraldo.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Tulsa attorney David Riggs, who heads the drive, is pushing for the community, especially local lawyers, to put it over the top.

Sentence 2: David Riggs, a Tulsa attorney, has no time for the community.
Is this second sentence entailed by the first?

Answer:
no