QUESTION: Premise: "A small dog on a leash jumps toward a pink ball."
Hypothesis: "A little dog is playing."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: A little dog playing is another way of describing a small dog that jumps toward a ball.
The answer is yes.

QUESTION: Test for natural language inference.
Premise: "The male is doing a handstand on the wet sand at the edge of the water at the beach."
Hypothesis: "The male is doing tricks."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Performing a handstand doesn't necessarily imply the person is performing tricks.
The answer is it is not possible to tell.

QUESTION: Test for natural language inference.
Premise: "A man smiles as he looks down at an orange sports car that's parked at a curb."
Hypothesis: "He's happy because he just purchased the sports car."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly:
Smiles does not necessarily mean happy and looks down does not mean he just purchased.
The answer is it is not possible to tell.