Sentence 1: During the 1970s, the southern portions of the Cardo, long covered by the ruins of the Jewish Quarter, were excavated.

Sentence 2: The southern region Cardo were mined During the 1970s.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: God that's cheap

Sentence 2: That is too pricey.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Chusonji was erected by the Fujiwara family when their power behind the imperial throne in Kyoto was waning.

Sentence 2: The Fujiwara family's power had declined as Japan became more unified.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell