Sentence 1: Shuttle buses run regularly from St. Peter's Square to the museum entrance and back, otherwise a 20-minute walk.

Sentence 2: Shuttle buses do not arrive at St. Peter's Square, so people have to take a 20 minute walk.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Centre Pompidou

Sentence 2: Centre Dumas de Alexandre.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Real politics is messy and morally ambiguous and doesn't make for a compelling thriller.

Sentence 2: Real politics have exciting stories from time to time.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell