Sentence 1: It's the animal house!

Sentence 2: The animal house is exciting!
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Favorites (dozens of useful links to other reportage and commentary--and gossip--on the Web).

Sentence 2: Dozens of links, that are useful to other reportage and commentary--as well as gossip--on the Web, are favorites.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: Mongolians from South China and Polynesian and Malay peoples from the Philippines and the Indonesian islands settled along the rivers of the peninsula and northern Borneo.

Sentence 2: Mongolians settled in the mountains.
Is this second sentence entailed by the first?

Answer:
no