Q: Given the sentence "A man in the shadows is walking towards a brick building." can we conclude that "It was dark outside while he walked."?
Options:
- yes
- it is not possible to tell
- no
A: Walking in the shadows does not mean it was dark outside while walked is past tense and not present.
The answer is it is not possible to tell.

QUESTION: Can we conclude from "A group of people are walking in front of a large stone building." that "A group walks past a large stone building."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Walking past a building and walking in front of a building is same.
The answer is yes.

[QUESTION] Test for natural language inference.
Premise: "A man is preparing food at an outdoor food shop in what looks like a poor country."
Hypothesis: "A man prepares food."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
If a man prepares food that means he is preparing food.
The answer is yes.

Q: Premise: "A person wearing khaki pants climbing up the side of a rocky cliff."
Hypothesis: "The person is competing in a rock climbing contest."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
A: Climbing a cliff doesn't mean that the person is in a contest.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "People who are all deck out in canadian colors are eating food at a canadian festival."
Hypothesis: "People are sitting in pews to listen to the minister."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: One cannot be at a festival and in pews at the same time.
The answer is no.

QUESTION: If "A sexy female volleyball player is about to hit the ball." does that mean that "The volleyball player is a zombie."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
The volleyball player cannot be about to hit the ball and be a zombie simultaneously.
The answer is no.