Sentence 1: The bar raised over a million dollars to fund the office.

Sentence 2: The office would not have been able to open without the funds raised by the bar.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: So then, what's behind all the brouhaha about my writings?

Sentence 2: Are the things I wrote really that interesting?
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The preamble to the final rule contains an explanation of the need for the information and the burden estimates relating to each section of the rule.

Sentence 2: The preamble to the final rule has an explanation for the necessity of information and burden estimates for every rule section.
Is this second sentence entailed by the first?

Answer:
yes