Q: If "A group of people racing on bikes around a track." does that mean that "There are people riding bikes."?
Options:
- yes
- it is not possible to tell
- no
A: One has to be riding a bike to be racing it.
The answer is yes.

QUESTION: If "A terrier mix catches a frisbee in the air." does that mean that "A dog is playing happily."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A terrier mix catches a Frisbee in the air does not indicate that a dog is playing happily.
The answer is it is not possible to tell.

[QUESTION] Given the sentence "A girl with green hair is hitting a pinata with a stick while a man dressed in green looks on." is it true that "The girl with the green hair is hitting a piata with a baseball bat."?
A baseball bat is not a stick. A baseball bat is a piece of equipment used to play baseball -- a sport.
The answer is no.

Q: If "Three men hunched over a workbench illuminated by fluorescent light." does that mean that "Some men work by fluorescent light."?
Options:
- yes
- it is not possible to tell
- no
A: Three men would imply there are some men. Being hunched over a workbench would imply they work.
The answer is yes.

QUESTION: Given the sentence "Person riding a racing motorcycle while other people watch." is it true that "People are watching a motorcyclist."?

Let's solve it slowly: A person riding a racing motorcycle is a kind of motorcyclist.
The answer is yes.

QUESTION: Given the sentence "Two young girls are smiling and laughing." can we conclude that "The girls are depressed about their college exams."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
You would not be smiling if you are depressed because then you would be sad.
The answer is no.