Sentence 1: Like Elche and Orihuela, Murcia has been a rich oasis since Moorish times.

Sentence 2: Its marketplace is famous for lavish goods.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: If he had dedicated time to studying Argentina, he would have found out that Eduardo Duhalde is desperately trying to gain votes, relying on old cliches that he expects will still be appealing to Argentinians, and trying to show how different he is from Carlos Menem--in part because he is different and in part to avoid the opposition attack.

Sentence 2: It is true that Eduardo Duhalde is being disingenuous in his Argentine campaign in an effort to improve his chances and skirt opposition criticism.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: it takes that long to get it heat up

Sentence 2: You don't have to wait a second for it to heat up.
Is this second sentence entailed by the first?

Answer:
no