QUESTION: If "A woman in a gray uniform participates in roller derby." does that mean that "The woman is good at roller derby."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: Simply participating in roller derby doesn't mean that the participant is good or bad at the activity.
The answer is it is not possible to tell.

QUESTION: Given the sentence "A football player in blue and gold is attempting to tackle the player in white." is it true that "The football player in blue and gold is sitting on the bench."?

Let's solve it slowly: One cannot tackle someone and be sitting on the bench simultaneously.
The answer is no.

QUESTION: Premise: "A yard laborer is cutting grass with a push lawn mower buy a busy street and a parking lot."
Hypothesis: "A person is using a lawn mower."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly:
Laborer is a person and pushing lawn mower is same that of using it.
The answer is yes.