Student asked: Given the sentence "A man on a bicycle sits at a stoplight with headphones on." is it true that "A man is on an expensive bicycle at a stoplight."?
Teacher's response: Let's think. A bicycle can be cheap and not necessarily a expensive bicycle. The answer is it is not possible to tell.

Student asked: If "A man selling hand-drawn portraits by the street." does that mean that "A man is drinking tea in a cafe."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Selling portraits by the street cannot occur with drinking tea in a cafe. The answer is no.

Student asked: Given the sentence "A man works on a construction project outside of a building." is it true that "The man builds."?
Teacher's response: Let's think. A man can work on construction but it doesn't mean he builds. The answer is it is not possible to tell.

Student asked: Given the sentence "A girl spins a merry-go-round at a playground." is it true that "The girl is playing alone."?
Teacher's response:
Let's think. A girl spins a merry-go-round at a playground does not indicate that she is playing alone. The answer is it is not possible to tell.