QUESTION: Given the sentence "A boy in a yellow jacket pores something out of a red pot into a tube as a girl in a yellow jacket watches him." is it true that "A boy and girl wearing lab coats perform a science experiment."?

Let's solve it slowly: Not all yellow jackets are lab coats. The children could have been doing a science experiment or something else when they poured something out of a red pot into a tube.
The answer is it is not possible to tell.

QUESTION: Premise: "Two young girls walking down a busy city street."
Hypothesis: "There are people outdoor."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Two young girls are people. A city street is always outdoors.
The answer is yes.

QUESTION: Premise: "Photographers take pictures of a girl sitting in a street."
Hypothesis: "The photographer is a pervert."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
As a photographer we can not assume he is a pervert just because he is taking pictures of a girl sitting in a street.
The answer is it is not possible to tell.