[Q] Premise: "A man in shorts is using a barbecue grill in a yard."
Hypothesis: "It is summer."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
[A] Using a barbecue grill does not necessarily mean it is summer.
The answer is it is not possible to tell.

[Q] Premise: "A food vendor happily serves his hungry customers."
Hypothesis: "A food vendor pleases his customers with new recipes."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
[A] Just because a food vendor serves his hungry customers doesn't imply he pleases his customers and doesn't imply with new recipes.
The answer is it is not possible to tell.

[Q] If "A crowd of people are seated together and most are wearing some type of red clothing or hat." does that mean that "The crowd of people are brought together by a common interest."?
Options:
- yes
- it is not possible to tell
- no
[A] Most are wearing some type of red clothing shows brought together by a common interest.
The answer is yes.