[QUESTION] Test for natural language inference.
Premise: "A man in a tall red hat is riding on a green tractor and waving to spectators."
Hypothesis: "The tractor is big."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A man on a green tractor doesn't mean it is a big tractor.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Two police riding horses in the city." can we conclude that "The animals are on the beach."?
Options:
- yes
- it is not possible to tell
- no
The city can't be on the beach at the same time.
The answer is no.

[QUESTION] Premise: "Professional hockey players are eagerly fighting for the puck."
Hypothesis: "They are all just teammates practicing."
Do we know that the hypothesis entailed by the premise?
Hockey players fighting for a puck does not mean they are just teammates practicing.
The answer is it is not possible to tell.

[QUESTION] Can we conclude from "A man in a red shirt and brown shorts and a black cap is sitting near a river with a fishing rod in the water." that "A man is fishing for salmon with a fishing rod at the river."?
Options:
- yes
- no
- it is not possible to tell
A man could sit without a fishing rod even if he is not fishing for salmon. There are other types of fish besides salmon.
The answer is it is not possible to tell.