[QUESTION] Given the sentence "The boy and girl are playing with arm floats on." is it true that "Children splash in a kiddie pool while others run through the sprinkler."?
A boy and girl don't necessarily have to be children and just because they have arm floats doesn't mean that they are in a kiddie pool. It's unknown that others run through the sprinkler.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A person riding a snowboard goes over a snowy ramp." is it true that "A group of skiers speeding down the hill."?
People cannot be skiers and ride a snowboard at same time.
The answer is no.

[QUESTION] Premise: "A boy stands on a rail with his arms outstretched."
Hypothesis: "A sad boy stands on a rail with his arms outstretched."
Do we know that the hypothesis entailed by the premise?
Standing on a rail with outstretched arms does not indicate mood/emotion such a being sad.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "Guy riding a bicycle down a grassy trail." can we conclude that "Rob makes for that salad."?
Options:
- yes
- it is not possible to tell
- no
One cannot ride a bicycle and make salad at the same time.
The answer is no.