Student asked: Given the sentence "A sports team dressed in black lines up at a white line on the grass." can we conclude that "Nobody is on the grass."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Mention of nobody on grass contradicts with the sports team lining up on the grass. The answer is no.

Student asked: If "A young boy walking his bicycle in the early evening." does that mean that "The boy is not riding his bicycle."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Someone who is walking his bicycle cannot be riding his bicycle. The answer is yes.

Student asked: If "A young boy playing with an improvised toy." does that mean that "A boy creates a creative new toy."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The boy who creates the new toy is not the same young boy who is playing with it. The answer is it is not possible to tell.

Student asked: Given the sentence "A man in a blue jumpsuit showing the carvings he has made." is it true that "A man is showcasing items he created."?
Teacher's response:
Let's think. A man showcasing items he created refers to man in a blue jumpsuit showing the carvings he has made. The answer is yes.