Q: Given the sentence "A man sits in front of a wall with art pictures on it." is it true that "A man sits on a beach."?
A: A man either sits in front of a wall or is on a beach.
The answer is no.

Q: Premise: "A woman fills her mouth with cotton candy."
Hypothesis: "A woman has cotton candy for the first time in her life."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: It must not be the first time in her life to have cotton candy in her mouth.
The answer is it is not possible to tell.

Q: Given the sentence "A woman gives the finger to a man about to deliver a shipment of plants and a passerby looks on." is it true that "A woman is flipping off a man with a shipment of plants."?
A: Woman giving the finger to a man is the same as woman flipping off a man as part of the description of man about to deliver a shipment.
The answer is yes.

Q: Given the sentence "A boy in a white shirt and green helmet is riding a skateboard down some steps." is it true that "The boy is skateboarding in an area where skateboarding is prohibited."?
A:
The skateboarding boy is breaking the law; what he is doing is prohibited in that place.
The answer is it is not possible to tell.