Sentence 1: These questions are relevant for DHS and every other federal agency and activity.

Sentence 2: These questions are have no relation to the DHS.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: "What? Listen!" I looked round, the others were out of earshot.

Sentence 2: The others heard.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: The real alternative delivery system in the United States is the newspaper industry which delivers advertising preprints or inserts.

Sentence 2: The newspaper industry makes a lot of money acting as the alternative delivery system.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell