Q: If "One very tired fisherman." does that mean that "The fisherman wants to sleep all day in his boat."?
Options:
- yes
- it is not possible to tell
- no
A: A tired fisherman does not imply he wants to sleep all day in his boat.
The answer is it is not possible to tell.

Q: Given the sentence "Woman teaching young boy how to swim." can we conclude that "Man teaching young boy how to swim."?
Options:
- yes
- it is not possible to tell
- no
A: It's either a woman or a man teaching the young boy to swim.
The answer is no.

Q: Can we conclude from "A jogger is being sheltered with an umbrella." that "A jogger is carrying an umbrella."?
Options:
- yes
- no
- it is not possible to tell
A: Being sheltered with an umbrella and carrying an umbrella could mean the same thing.
The answer is yes.

Q: Given the sentence "Two men working at a stand selling pictures." is it true that "Men are selling hot dogs."?
A:
Men can't be selling hot dogs if they are selling pictures.
The answer is no.