Student asked: Test for natural language inference.
Premise: "Multiple students sitting on stairs at a school."
Hypothesis: "A group of students are waiting for their teacher at the stairs."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Students sitting on stairs could be doing something other than waiting for their teacher. The answer is it is not possible to tell.

Student asked: Given the sentence "Umpire brushes off home plate." can we conclude that "There is a man on the baseball field."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The umpire brushing the home plate implies he is on the baseball field. The answer is yes.

Student asked: Given the sentence "A mountain biker wearing a colorful helmet rides downhill." is it true that "A biker wearing a helmet."?
Teacher's response: Let's think. The fact that a mountain biker wearing a colorful helmet rides downhill does not mean that a biker wearing a helmet. The answer is it is not possible to tell.

Student asked: Premise: "A man is standing next to a vehicle in a city setting."
Based on this premise, can we conclude that the hypothesis "Someone is standing by a car." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. A man is the someone standing by or next to a car. The answer is yes.