QUESTION: Given the sentence "A skateboarder grinds a rail." is it true that "A skateboarder is at a competition."?

Let's solve it slowly: A skateboarder who grinds a rail is not necessarily at a competition.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A mother dog giving her puppy some milk."
Hypothesis: "Puppy's are feeding on their mother dog."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The way a puppy gets milk from their mom is by feeding on the dog.
The answer is yes.

Q: Can we conclude from "A man wearing glasses holds a flip phone in his hand while a woman wearing earrings stands behind him." that "The man and woman are inside a building."?
Options:
- yes
- no
- it is not possible to tell
A: Holding a phone and a woman standing behind a man does not imply they are inside a building.
The answer is it is not possible to tell.

QUESTION: Premise: "New york city is a highly crowded place."
Based on this premise, can we conclude that the hypothesis "Where people do various activities from walking to sitting on stairs using a laptop to just watching the city crowd." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: People using laptop to take pictures of the crowd of people walking and sitting around them in public.
The answer is it is not possible to tell.

[QUESTION] Premise: "A smiling blond girl on the side of the road."
Based on this premise, can we conclude that the hypothesis "A girl is on the side of the road smiling because she is hitchhiking and a car stopped to pick her up." is true?
Options:
- yes
- it is not possible to tell
- no
Being on the side of the road does not mean she is hitchhiking and a car stopped to pick her up.
The answer is it is not possible to tell.

Q: Premise: "The white and black dog leaped into the air and off the snowy ground."
Hypothesis: "The dog is on a bed."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A:
Dog cannot leap into the air and off the snowy ground while on a bed.
The answer is no.