Sentence 1: This principle discusses the strategies that leading organizations use to assess their skill bases and attract, recruit, and retain IT professionals.

Sentence 2: Many different strategies are used depending on the situation.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: They play host to terrorist groups, yet wax indignant when terrorists hijack an aircraft.

Sentence 2: They have nothing to do with terrorist groups.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: If you're stranded anywhere, hitch-hiking is accepted behavior and you'll surely get a ride.

Sentence 2: Hitch-hiking is seen as completely unacceptable behavior.
Is this second sentence entailed by the first?

Answer:
no