QUESTION: Premise: "A man in army dress shows a picture from a book."
Based on this premise, can we conclude that the hypothesis "A veteran shows a picture from vietnam." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Being in Army dress doesn't necessarily imply the man is a veteran. The fact that the man shows a picture doesn't mean it's a picture from Vietnam.
The answer is it is not possible to tell.

QUESTION: If "People look at a glass case holding food for sale." does that mean that "The people looked at the glass case after the worker put new food inside of it."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Can't determine if and when a worker put new food into the case.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A crowd goes wild at a concert while confetti rains down." that "The headliner is on stage."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
The crowd could go wild even it the headliner is not on stage. Some concerts are not performed on a stage.
The answer is it is not possible to tell.