[QUESTION] Given the sentence "A tractor loaded with parts is moving across a barren area outside." can we conclude that "An empty tractor parked inside a garage."?
Options:
- yes
- it is not possible to tell
- no
The tractor can't be both loaded an empty at the same time.
The answer is no.

[QUESTION] Given the sentence "Two dogs race around the course." is it true that "Two dogs are sleeping."?
The dogs cannot race and be sleeping at the same time.
The answer is no.

[QUESTION] Test for natural language inference.
Premise: "A woman in a purple shirt and a man are standing in a street."
Hypothesis: "The woman is in purple."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
If a woman is in a purple shirt then she is in the color purple.
The answer is yes.

[QUESTION] Given the sentence "A surfer wearing a wetsuit and using a light colored board catches some air." can we conclude that "A surfer is having a great run as he seems to float above the waves."?
Options:
- yes
- it is not possible to tell
- no
A surfer being out on the waves doesn't imply he is having a great run.
The answer is it is not possible to tell.