Premise: "A man is repelling down the side of a mountain over the ocean."
Hypothesis: "The man is climbing up the moutain."
Do we know that the hypothesis entailed by the premise?

no
Explanation: Up is the opposite of down. Climbing is much different than rappelling..

Premise: "A young boy in a green shirt playing with a miniature train on an elevated train track."
Based on this premise, can we conclude that the hypothesis "A boy playing with a train on the completely flat train track." is true?
Options:
- yes
- it is not possible to tell
- no

no
Explanation: A boy might not be young. A completely flat train track is not the same as an elevated train track..

Premise: "A man with a gas mask and goggles on his head."
Hypothesis: "A man with goggles on his head holds a gas mask."
Do we know that the hypothesis entailed by the premise?

it is not possible to tell
Explanation: A man with a gas mask and goggles on his head does not particularly imply holds a gas mask..

Test for natural language inference.
Premise: "An overhead view of a racing motorcycle."
Hypothesis: "A motorcycle is visible."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
yes
Explanation: If there is an overhead view of a motorcycle then the motorcycle is visible..