Student asked: Can we conclude from "A person is cleaning snow and ice off of a city sidewalk." that "A person making a snow angel."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. If one is cleaning snow and ice off a sidewalk one is not simultaneously making a snow angel. The answer is no.

Student asked: Premise: "A woman in sunglasses and a hat standing on the street with a special offer sandwich board on her."
Hypothesis: "A woman wearing a hat stood outside wearing an advertisement for a special offer sandwich."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Having a special offer sandwich board on her means the same things as wearing an advertisement for a special offer sandwich. The answer is yes.

Student asked: Can we conclude from "A man in green on a green bike is in the air after jumping off a ramp." that "A man is on a bike."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The man jumping off a ramp is on a bike. It is implied that it is a bike because that is what you do tricks with. The answer is yes.

Student asked: Given the sentence "There are several people standing on the platform waiting for the subway or train." is it true that "A group of people walking down the street."?
Teacher's response:
Let's think. People walking down the street contradicts with people standing on the platform. The answer is no.