QUESTION: If "A man pick a stone at the sea." does that mean that "The man picked up a large stone and threw it in the sea."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A man picked up a stone is not necessary to threw it in the sea.
The answer is it is not possible to tell.


QUESTION: Premise: "A female swimmer with goggles and a cap does the backstroke."
Hypothesis: "A female swimmer is taking a break by the pool."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Can not be taking a break and doing a backstroke at the same time.
The answer is no.


QUESTION: Given the sentence "Three people wearing white hard hats ride on a forklift." can we conclude that "One of them is wearing a blue hat."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
Three people wearing white hard hats mean that they are all wearing white hard hats. None of them can be wearing a blue hat.
The answer is no.