Sentence 1: Preeminent among the attractions is Jerusalem.

Sentence 2: Jerusalem is the most popular site.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: This rule is promulgated under the authorities of 21 U.S.C.

Sentence 2: This rule has no relation to 21 U.S.C.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Changes in the expected system size may necessitate reestimates of the development cost, using the cost models described earlier in this appendix.

Sentence 2: All of the models show the costs skyrocketing.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell