QUESTION: Premise: "A guard stands watch at a monument as tourists look on."
Hypothesis: "A guard is watching the washington monument."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: The guard standing watch at a monument need not be Washington Monument.
The answer is it is not possible to tell.

QUESTION: Premise: "A man examining something under a magnifying lens."
Based on this premise, can we conclude that the hypothesis "The man looks at something small." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Examining means the same thing as looks. A magnifying glass is used to examine small things.
The answer is yes.

QUESTION: Given the sentence "A girl with a white dress is posing for the camera." is it true that "A girl poses for the camera at a wedding."?

Let's solve it slowly:
A girl with a white dress is posing for the camera does not imply that she poses for the camera at a wedding.
The answer is it is not possible to tell.