Student asked: Can we conclude from "City workers beside a tree grinder." that "There are workers far from a tree grinder."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. The workers could not be standing beside the tree grinder if they were far away from it. The answer is no.

Student asked: Premise: "A man taking a picture of a group of people in a park."
Hypothesis: "A man taking a photograph of people in a park for a magazine."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. Pictures are taken regularly for things other than for a magazine. The answer is it is not possible to tell.

Student asked: Premise: "A white woman in a dress walks down the sidewalk."
Based on this premise, can we conclude that the hypothesis "A woman wearing pants walks down the sidewalk." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The woman was unlikely to be wearing pants and a dress. The answer is no.

Student asked: Given the sentence "A young man wearing a helmet rides a skateboard on a ramp." is it true that "A motorcyclist in a helmet rides by."?
Teacher's response:
Let's think. A motorcyclist is not necessarily a young man. A motorcyclist would not ride a skateboard. The answer is no.