Student asked: Test for natural language inference.
Premise: "A child stands in front of an incoming wave as the sun sets."
Hypothesis: "The child is watching the sun set."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Just because child outside does not mean watching the sun set. The answer is it is not possible to tell.

Student asked: Given the sentence "People are gathered around a sign for the metro." is it true that "The people are in a subway."?
Teacher's response: Let's think. A sign for the metro does not mean people are in a subway. The answer is it is not possible to tell.

Student asked: Given the sentence "A skateboarder doing moves on a bench." can we conclude that "He is seated on the bench."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A skateboarder can not be doing moves on a bench while also seated on the bench. The answer is no.

Student asked: If "Two men with hard hats are at a work site." does that mean that "Two men are wearing hard hats."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Hard hats are supposed to be worn at a work site. The answer is yes.