Sentence 1: Few places on earth can rival Madeira's wealth of natural gifts, especially in so small an area.

Sentence 2: Although Madeira has so many natural gifts, they are at risk of being lost.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: They did not see the need for the separate category of RSSI.

Sentence 2: They saw the reason to make a new category.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: There are many diving schools, all of which dive from Coral Beach.

Sentence 2: Many diving schools engage in their diving activities from Coral Beach.
Is this second sentence entailed by the first?

Answer:
yes