Q: Test for natural language inference.
Premise: "Hiker crossing a waterfall."
Hypothesis: "The hiker is heading back to his camp."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A: it is not possible to tell
Chain-of-thought: Just because a hiker is crossing a waterfall does not mean he is heading back to camp.

Q: If "A group of black boys in a classroom setting wearing white shirts." does that mean that "Listening to a speech about unicef."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Chain-of-thought: A group of high school students hear about the advantages of donating to UNICEF.

Q: Given the sentence "A skateboarder jumps off his skateboard in midair in hopes of landing back on it." can we conclude that "A skateboarder happily jumps."?
Options:
- yes
- it is not possible to tell
- no
A: it is not possible to tell
Chain-of-thought: No indication that he/she is happily jumping anything. Could be just jumping.

Q: Given the sentence "A blond woman is writing on a piece of paper." is it true that "A blonde woman is leaving a note for a friend."?
A: it is not possible to tell
Chain-of-thought:
Not all writing on a piece of paper is a note for a friend.