QUESTION: Premise: "A large group of youths sitting and socializing on a graffiti-covered cement wall."
Hypothesis: "A large group of youths worked hard to sit on wall."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A group of youths cannot be working hard to sit on a wall while sitting and socializing on a graffiti covered wall.
The answer is no.

[QUESTION] Premise: "A woman in a white cardigan is smiling at a baby."
Based on this premise, can we conclude that the hypothesis "A woman is looking at her friend's baby for the first time." is true?
Options:
- yes
- it is not possible to tell
- no
Because a woman is smiling at a baby doesn't mean that is her friend's baby.
The answer is it is not possible to tell.

Q: Premise: "Two men sitting on a railroad tie showing the camera something in his hand."
Hypothesis: "Two men are eating at a restaurant."
Do we know that the hypothesis entailed by the premise?
A: Two me cannot be sitting on a railroad tie and eating at a restaurant at the same time.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "Several people are seated in chairs at a restaurant with cups of coffee in saucers and food set in front of them."
Hypothesis: "A group of ladies are having breakfast."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: All people are not ladies and having cups of coffee and food does not necessarily mean they are having breakfast.
The answer is it is not possible to tell.

[QUESTION] Premise: "A dog walks in the grass towards a dog lying down."
Hypothesis: "Two dogs are in the grass."
Do we know that the hypothesis entailed by the premise?
A dog lying down and a dog walking is equivalent to two dogs in the grass.
The answer is yes.

Q: If "A girl standing among a crowd gathered outdoors with the flag of western sahara and a white banner with inscription in the background." does that mean that "The crowd is waiting for a ceremony to begin."?
Options:
- yes
- it is not possible to tell
- no
A:
A crows gathered does not imply waiting for a ceremony to begin.
The answer is it is not possible to tell.