QUESTION: Can we conclude from "A young man balances himself on one hand on a platform." that "The boy is trying not to fall off the platform."?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Balances does not imply trying not to fall off of a platform.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A kayaker in whitewater rapids between two rocks." is it true that "And a bystander on a rocky shore watching."?

Let's solve it slowly: There is a kayaker looking at the ocean before he gets in.
The answer is no.

QUESTION: Premise: "The yellow greyhound runs along the track muzzled."
Hypothesis: "The yellow greyhound is in first place."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
The yellow greyhound could be not in the first place but still runs along the track muzzled.
The answer is it is not possible to tell.