Question: Sentence A: The dramatically rising cliff of black basalt stone made the castle impregnable to all but the most wily commander.

Sentence B: The castle could be easily invaded by almost anyone.

If sentence A is true, how about sentence B?
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: no

Question: The vast riverfront complex surrounding a sunken garden of some 250 exotic trees is popularly known as the TGB (Tras Grand Bibliotha Very Big Library ).
There aren't any trees in the garden, are there?
OPTIONS:
- yes
- it is not possible to tell
- no

Answer: no

Problem: Here is a premise:
I shut my eyes.

Here is a hypothesis:
I kept my eyes wide-open.

Here are the options: OPTIONS:
- yes
- it is not possible to tell
- no

Answer: no

Sentence 1: In this executive guide, we discuss the three key steps and their relationship to GPRA, along with the practices associated with each step.

Sentence 2: We discuss three of the five steps.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: it is not possible to tell

Question:
What is wrong with the orrery? he asked.

Does it follow that "He asked what was wrong with the orrery."?
OPTIONS:
- yes
- it is not possible to tell
- no
Answer:
yes

Question:
Based on the premise "That argument which holds that the attempt to raise saving will end up lowering national income, because consumption will fall, and with it profits, output, and employment.", can we conclude that "An increase in savings will lead to a decline in national income."? OPTIONS:
- yes
- it is not possible to tell
- no
****
Answer:
yes