Student asked: Premise: "The man does a trick on his skateboard on a concrete ramp."
Based on this premise, can we conclude that the hypothesis "Man with broken leg." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The man cannot be doing a trick on his skateboard if he has a broken leg. The answer is no.

Student asked: Given the sentence "A man in a blue shirt looks through a large telescope outside while a man in a red shirt looks on." can we conclude that "A man is studies cells under a microscope."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. The man neither looks through a telescope or looks on when he studies under a microscope. The answer is no.

Student asked: If "Two dogs run side-by-side on the grass." does that mean that "The dogs are playing with each other."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. Two dogs run side-by-side on the grass does not imply that they are playing with each other. The answer is it is not possible to tell.

Student asked: Premise: "A group of people in aprons holding hands and skipping."
Based on this premise, can we conclude that the hypothesis "Grade school cooks are playing outside." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. People in aprons does not imply that they are in grade school. Wearing aprons does not necessarily imply that people are cooks. Holding hands and skipping does not necessarily imply that people are outside. The answer is it is not possible to tell.