QUESTION: If "A group of children in blue uniforms walk to class." does that mean that "A group of kids went to school."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: One can go to a class with out it being school.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A man in a checked shirt and slacks leans on a post in front of a business." can we conclude that "A man is shopping in the store."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A man cannot be in front of a business as well as in the store.
The answer is no.

QUESTION: Given the sentence "Two young girls playing with each other." can we conclude that "Girl plays with her barbie alone at home."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
If two girls are playing with each other then then one of the girls could not have been playing with a barbie alone.
The answer is no.