QUESTION: Premise: "Team blue and team red playing football."
Hypothesis: "The yellow and green team played soccer."
Do we know that the hypothesis entailed by the premise?

Let's solve it slowly: Team blue and red are playing football and team yellow and green are playing soccer. There are two different teams playing two games.
The answer is no.

QUESTION: If "A man is mowing the lawn in front of a realty office building." does that mean that "The man was hired to mow the lawn."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly: A man mowing a lawn of a office building doesn't mean he was hired to mow the lawn.
The answer is it is not possible to tell.

QUESTION: Given the sentence "Three men leap on a lawn." can we conclude that "The men are tap dancing."?
Options:
- yes
- it is not possible to tell
- no

Let's solve it slowly:
The men can not leap and be tap dancing at the same time.
The answer is no.