Problem: Here is a premise:
Changes in the expected system size may necessitate reestimates of the development cost, using the cost models described earlier in this appendix.

Here is a hypothesis:
All of the models show the costs skyrocketing.

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

Answer: it is not possible to tell

Sentence 1: Hungry Mao's Secret Famine , by Jasper Becker (Free Press).

Sentence 2: Jasper Becker wrote Hungry Mao's Secret Famine.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer: yes

Question:
I said, and tried to sit up in bed, but my right foot gave me a nasty twinge as I did so.

Does it follow that "I tried to sit up in bed, but I felt a sharp pain in my foot."?
OPTIONS:
- yes
- it is not possible to tell
- no
Answer:
yes

Q: If Just say that to him, and see what he says.", can we say that "You don't need to understand what it's about. Just do it."?
OPTIONS:
- yes
- it is not possible to tell
- no

A: it is not possible to tell

Premise:
"In its new building, the Project Arts Ceter, 39 East Essex Street, displays the most avant-garde in painting and sculpture; it has a performance space upstairs."
Hypothesis: The Project Arts Centre's performance area can be found downstairs in the basement.
OPTIONS:
- yes
- it is not possible to tell
- no

no

Sentence 1: Who's going? demanded Tuppence sharply.

Sentence 2: Tuppence wanted to know if Mr. Smith was going.
OPTIONS:
- yes
- it is not possible to tell
- no
Is this second sentence entailed by the first?

Answer:
it is not possible to tell