Q: Given the sentence "Some people walk on a gray sidewalk." is it true that "People are waiting along a parade route."?
A: They said nothing about a parade route or that anyone was waiting to watch it.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A man in white is singing his heart out." is it true that "A man is doing karaoke at a bar."?

Let's solve it slowly: The man singing doesn't indicate he is doing karaoke or at a bar.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A black-haired man with glasses and a brown jacket is walking down an urban street."
Hypothesis: "A man trying to get through a crowd."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A black-haired man with glasses and a brown jacket is walking down an urban street does not necessary that he is trying to get through a crowd.
The answer is it is not possible to tell.

Q: Premise: "A woman wearing a hat and a woman wearing sandals looking to the left of them on a busy street."
Hypothesis: "There are two ladies in string bikinis."
Do we know that the hypothesis entailed by the premise?
A: A hat and sandals are different clothing items than a string bikini.
The answer is no.

QUESTION: Premise: "A skier is in the air."
Based on this premise, can we conclude that the hypothesis "The person is outdoors in the mountains." is true?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A skier in the air does not imply he or she is outdoors nor in the mountains.
The answer is it is not possible to tell.

QUESTION: Premise: "A man in a blue shirt stands near a man in a white shirt in front of a large building."
Hypothesis: "Men stand in front of a building."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
A man and another man can be commonly referred to as men.
The answer is yes.