Sentence 1: Tours of the chateau are self-guided and there are impressive formal gardens and a large park.

Sentence 2: Impressive formal gardens can be seen on self-guided tours of the chateau.
Is this second sentence entailed by the first?

Answer: yes

Sentence 1: My dear fellow, that's just what I want.

Sentence 2: There is nothing else that I want.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Built in 1815 1818 and one of the last great buildings of Dublin's Georgian architecture, the GPO is justly renowned for its imposing Ionic portico (look for the bullet holes) with six fluted columns and figures sculpted by Edward Smyth.

Sentence 2: The GPO has a big portico.
Is this second sentence entailed by the first?

Answer:
yes