Sentence 1: Adding the current annual replacement demand from worldwide installations to the projected annual replacement demand under the Clear Skies Act would yield a total of 17,600 - 20,600 m3/yr demand for replacement catalyst by 2005.

Sentence 2: The demand expected for replacement catalyst is unsustainable.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: He'll be riding in to meet the wagons.

Sentence 2: He will ride a horse in to meet the wagons.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: The milk proponents offer a variety of responses as to why osteoporosis is far less common in the nonmilk-drinking world.

Sentence 2: The reason is that the bodies of non-milk drinkers are used to finding other ways of strengthening the bones.
Is this second sentence entailed by the first?

Answer:
it is not possible to tell