Sentence 1: Duke William returned from his conquest of England to attend the consecration of Notre-Dame in 1067.

Sentence 2: Duke William left immediately after the consecration of Notre-Dame was finished.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: They are proud of their nation and have a right to be.

Sentence 2: They are happy with how their country is run.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: If Madrid played any role in these pivotal events, no record of it remains.

Sentence 2: If Madrid was involved in the event, there is no record of it because the records were destroyed in a fire.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell