[QUESTION] Can we conclude from "A cowboy is viciously thrown about as he attempts to hold on to a horse he is riding in a rodeo competition." that "The cowboy is riding for the championship."?
Options:
- yes
- no
- it is not possible to tell
Participating in a rodeo competition does not imply that the cowboy is riding for the championship.
The answer is it is not possible to tell.

[QUESTION] Premise: "Swimming instructors teaching young girls how to float in a pool."
Hypothesis: "The instructors are new."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teaching a young student does not imply that the instructors are new.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A postal carrier with a big smile stands on the sidewalk with his cart of mail."
Hypothesis: "A postal carrier with a big smile is standing on the sidewalk delivering mail."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The fact that the postal carrier has mail does not mean that said mail is being delivered.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A group of people gathered by a stone wall." is it true that "There is a group of people in a field."?
People gathered by a stone wall cannot also be in a field.
The answer is no.