Q: Given the sentence "A young main is using an apple computer." is it true that "The man can operate a computer."?
A: In order to be using an Apple computer the man must be able to operate a computer.
The answer is yes.

QUESTION: Premise: "The lady in the striped shirt is talking to the woman who has brown hair."
Hypothesis: "They are pulling each others hair out."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: They can't be talking and pulling each others hair out at the same time.
The answer is no.

[QUESTION] Given the sentence "A skateboarder is riding his board on a ramp in a skate park." can we conclude that "A young guy is practicing skateboard tricks with his friends."?
Options:
- yes
- it is not possible to tell
- no
Just because a guy riding his board on a ramp doesn't mean he doing tricks with his friends.
The answer is it is not possible to tell.

Q: Premise: "A person wakeboards on a bright yellow board wearing pink shirts a white vest and black helmet."
Hypothesis: "A person is competing in the national wakeboarding competition and he is sponsored by billabong."
Do we know that the hypothesis entailed by the premise?
A: A person wakeboarding does not have to be in the national wakeboarding competition.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A man wearing a helmet has his hand up in the air and is shouting in a similar way the crowd behind his doing." is it true that "Two men sit contemplatively."?

Let's solve it slowly: Must be a man or two men. Cannot sit contemplatively and shout in a crowd.
The answer is no.

QUESTION: Can we conclude from "Pedestrians navigate their way up and down a busy city stairwell." that "People are running around outside in the park."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
Navigate and running are different actions. The stairwell and the park are different locations.
The answer is no.