Sentence 1: There is one thing that I have never figured out about laundry room etiquette

Sentence 2: There are still things unknown about the laundry room etiquette.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: oh oh boy and he's five shoot i guess so gee

Sentence 2: He's five.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: An announcement in the Commerce Business Daily orRequest for other publication requesting industry comment onComment draft specifications for resources.

Sentence 2: The announcement in the Commerce Business Daily is looking for comments.
Is this second sentence entailed by the first?

Answer:
yes