Student asked: Premise: "A man rides a jet ski across the ocean."
Based on this premise, can we conclude that the hypothesis "A man is scared of water." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. One situation says the man is riding across the ocean while the other says the man is scared of water. The answer is no.


Student asked: Test for natural language inference.
Premise: "A group of people in white masks are holding a banner."
Hypothesis: "A group of people are swimming in a pool."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. People holding a banner cannot be simultaneously swimming in a pool. The answer is no.


Student asked: Given the sentence "A person wearing a black wetsuit jumps high above a wave with a surfboard." is it true that "A person is surfing."?
Teacher's response: Let's think. The person is is either wearing a black wetsuit or not. The answer is yes.


Student asked: Given the sentence "A ballerina poses with christmas lights." is it true that "A dancer is performing."?
Teacher's response:
Let's think. A ballerina is another word for dancer and when she poses she usually performs. The answer is yes.