QUESTION: Given the sentence "A crowd of people browse various concession offerings." is it true that "The concession stand sells candy and drinks."?

Let's solve it slowly: People browsing concession offerings doesn't infer it sells candy and drinks.
The answer is it is not possible to tell.

[QUESTION] Premise: "Pink and purple balloons outside of a building."
Hypothesis: "Blue and green balloons are floating in the sky."
Do we know that the hypothesis entailed by the premise?
It can either be pink and purple balloons or blue and green balloons.
The answer is no.

Q: Premise: "A young man wearing all black is taking a break after walking along the river."
Hypothesis: "A young man wearing all black eats chips."
Do we know that the hypothesis entailed by the premise?
A: If a man is taking a break he is not eating chips.
The answer is no.

QUESTION: Given the sentence "People standing in front of a neuroscience booth." can we conclude that "People love neuroscience booth."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: They could not love the neuroscience booth if they were busy standing in front of it.
The answer is no.

[QUESTION] Premise: "A man casting out a fishing line into a stream."
Hypothesis: "The man is waiting for the fishes to bite."
Do we know that the hypothesis entailed by the premise?
The man can not be casting out and waiting for a bite at the same time.
The answer is no.

Q: Premise: "Four young boys are running down a sidewalk."
Based on this premise, can we conclude that the hypothesis "Boys are sitting on the sidewalk." is true?
Options:
- yes
- it is not possible to tell
- no
A:
The boys can't be running and sitting on a sidewalk at the same time.
The answer is no.