[Q] Premise: "A person looking through a microscope."
Based on this premise, can we conclude that the hypothesis "A man plays the harp." is true?
Options:
- yes
- it is not possible to tell
- no
[A] A person who plays the harp can't be looking through a microscope at the same time.
The answer is no.

[Q] Given the sentence "A tan and black dog leaps through a burning hoop on a field." is it true that "A dog swims in the ocean."?
[A] The dog either leaps through a hoop or swims in the ocean.
The answer is no.

[Q] Given the sentence "A waterskier is waving at the camera happily." is it true that "A man is participating in a contest."?
[A] Not all water-skier's are men. One is not necessarily participating in a contest just because they are skiing.
The answer is it is not possible to tell.