Sentence 1: In contrast, fixed-priced contracts, except those subject to price adjustment, provide for a preestablished firm price, place maximum risk and full responsibility for all costs and resulting profit or loss on the contractor, and provide maximum incentive for the contractor to control costs and perform effectively.

Sentence 2: Fixed-price contracts are preferable to customers over variable-rate contracts.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: I HAD thought of hats!

Sentence 2: I had thought about the hats.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: The average age in the starting lineup is 32, and the roster is filled by NBA workhorses such as Mullin, Jackson, and Dale Davis.

Sentence 2: The NBA is a high paying, popular sport in American entertainment.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell