[Q] Premise: "Three bicyclists race around a curve."
Based on this premise, can we conclude that the hypothesis "Cyclists without helmets are racing each other." is true?
Options:
- yes
- it is not possible to tell
- no
[A] Cyclists don't have to be without helmets to be racing around a curve.
The answer is it is not possible to tell.

[Q] Given the sentence "Firefighters respond to the scene of a motorcycle accident." is it true that "The police respond to a domestic dispute."?
[A] The scene of a motorcycle accident is not a domestic dispute.
The answer is no.

[Q] Test for natural language inference.
Premise: "An inline skater is grinding down a long rail."
Hypothesis: "The skater is doing tricks."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
[A] Just because the skater is grinding down a long rail doesn't mean he is performing tricks.
The answer is it is not possible to tell.