[QUESTION] Premise: "People taking pictures of a giant pig behind a wooden fence."
Hypothesis: "Tall humans taking pictures."
Do we know that the hypothesis entailed by the premise?
The people taking the pictures may or may not be tall.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A man is using a wrench to fix the wheel of his car while a blond girl helps him."
Hypothesis: "The man is washing the car."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
A man can not be using a wrench and washing at the same time.
The answer is no.

[QUESTION] Given the sentence "A brown dog walks on top of a felled tree trunk." is it true that "A dog is walking and jumps over an old tree that fell due to excessive rain."?
A brown dog walks on top of a felled tree trunk does not imply that it jumps over an old tree that fell due to excessive rain.
The answer is it is not possible to tell.

[QUESTION] Test for natural language inference.
Premise: "A man with a guitar and a cowboy hat performs in front of a microphone."
Hypothesis: "The man is wearing sunglasses."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
The man with a guitar is possibly wearing sunglasses but he could just as easily not be wearing them.
The answer is it is not possible to tell.