[QUESTION] If "An almost empty subway terminal." does that mean that "A great looking building."?
Options:
- yes
- it is not possible to tell
- no
An almost empty subway terminal is not necessarily a great looking building.
The answer is it is not possible to tell.

Q: Given the sentence "Two balloon artists are standing and sitting on a dry dirt hill." can we conclude that "The artists are outdoors."?
Options:
- yes
- it is not possible to tell
- no
A: Two artists are sitting on a dirt hill; the dirt hill must be outdoors.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "An umpire marking a base."
Hypothesis: "A umpire making a game changing call."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: An umpire could do something other than be making a game changing call.
The answer is it is not possible to tell.

[QUESTION] If "Twelve people are ready to take off in a hot air balloon." does that mean that "The hot air balloon is being deflated."?
Options:
- yes
- it is not possible to tell
- no
If a balloon is being deflated it is not about to take off.
The answer is no.

Q: If "A barber in a white coat is cutting an elderly gentleman's hair with clippers." does that mean that "A barber is cutting his dad's hair."?
Options:
- yes
- it is not possible to tell
- no
A: The barber could have been cutter another elderly man's hair besides his dad's.
The answer is it is not possible to tell.

[QUESTION] If "The boy in the yellow shirt is skipping stones." does that mean that "The rocks are skipping across the water."?
Options:
- yes
- it is not possible to tell
- no
Rocks and stones are not the same thing. The stones may not be successfully skipping across water.
The answer is it is not possible to tell.