Sentence 1: she got married to him

Sentence 2: they don't even know each other
Is this second sentence entailed by the first?

Answer: no

Sentence 1: The site ruins, mostly from the Hellenistic period, lie almost overgrown, but they are perfect for exploring at your own pace.

Sentence 2: The ruins are mostly from the Hellenistic period.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Maybe it would.

Sentence 2: Perhaps it would.
Is this second sentence entailed by the first?

Answer:
yes