Sentence 1: It was rediscovered in 1594 by an architect building an aqueduct, but excavation did not begin until 1748 under the Bourbons, making a tremendous impact on the rest of Europe.

Sentence 2: It was rediscovered in 1454 by a merchant setting up shop.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: It's insane.

Sentence 2: It's very crazy.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The facades of elegant houses on the north side were designed by Adam and have changed little since they were finished in 1805.

Sentence 2: The facades of the houses designed by Adam has undergone just one renovation since 1805.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell