QUESTION: If "A yawning man and a smiling boy are sitting on the pavement." does that mean that "The boy is frowning."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A boy can either be smiling or frowning. He cannot be smiling and frowning simultaneously.
The answer is no.

QUESTION: Test for natural language inference.
Premise: "Defensive football players in green tackle the ball carrier."
Hypothesis: "The players are playing the game."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell

Let's solve it slowly: Players tackle the ball carrier does imply players are playing the game.
The answer is it is not possible to tell.

QUESTION: Given the sentence "Two hockey players wearing yellow and black uniforms skate on the ice." is it true that "Three people are watching the hockey game from the stands."?

Let's solve it slowly:
There is two hockey players on the ice and three people in the stands.
The answer is no.