QUESTION: Given the sentence "A man buying corn on the cob from a street vendor." is it true that "A person buys food on the street."?

Let's solve it slowly: A man is a type of person. Corn on the cob is a type of food. A street vendor by definition works on the street.
The answer is yes.

QUESTION: Premise: "A barefoot woman with tattoos on her shoulders shopping in a grocery store."
Hypothesis: "The woman lost her shoes."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Being barefoot does not always indicate that a woman lost her shoes.
The answer is it is not possible to tell.

QUESTION: Given the sentence "An afican american woman standing behind two small african american children." can we conclude that "There is a mother standing behind her children."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
A woman standing behind two small children is not necessarily the children's mother.
The answer is it is not possible to tell.