Student asked: Test for natural language inference.
Premise: "A man in a green sweatshirt and jeans pushes a bike with a cart attached to it down a street."
Hypothesis: "Nobody is using a cart."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Either nobody is pushing a cart or a man pushes a cart. The answer is no.

Student asked: Given the sentence "A young toddler waves an american flag near a lamp post." can we conclude that "The toddler is in a swimming pool."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. A toddler waving a flag by a lamppost is unlikely to be in a swimming pool. The answer is no.

Student asked: Can we conclude from "A child and a man walking in the sand." that "Two men are walking in the sand."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. If there are two men then they are not a child and a man. A child is not man. The answer is no.

Student asked: Test for natural language inference.
Premise: "A casually dressed woman is walking in a semi busy suburban town."
Hypothesis: "There is a woman walking to lunch with friends."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Teacher's response:
Let's think. A woman could be walking without going to lunch with friends. The answer is it is not possible to tell.