Sentence 1: Note that sometimes there is a cover charge of HK$50 to HK$200 at clubs, which may or may not include a couple of drinks.

Sentence 2: Sometimes there is a cover charge at clubs, but only for gullible tourists.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Lott's comments on homosexuality surely have more to do with how they play in Mississippi than with his innermost convictions.

Sentence 2: Lott probably think the homosexuals play very dirty in Mississippi.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Low-income households must negotiate legal issues to satisfy their basic needs for food, housing, health care, personal safety and education.

Sentence 2: Low income households don't have to negotiate legal issues.
Is this second sentence entailed by the first?

Answer:
no