Sentence 1: but if you look at what's in that little car and as opposed to what's in some of the American cars you can see where we're probably a half a step behind and i think i think we're trying to do something to correct that but i think we got away from us a little bit so

Sentence 2: They had to take their American car to the junk yard.
Is this second sentence entailed by the first?

Answer: no

Sentence 1: Thus, economic growth depends not only on the amount of saving and investment but also on an educated work force, an expanding base of knowledge, a continuing infusion of innovations, and a sound legal and institutional environment.

Sentence 2: Economic growth depends on how much you save and invest and also having a strong technological base.
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Sentence 1: Originally capped with a smooth layer of limestone it would have reflected sunlight like a beacon across the Nile valley.

Sentence 2: It would have reflected sunlight like a beacon across the Nile valley because it was capped with a layer of limestone.
Is this second sentence entailed by the first?

Answer:
yes