QUESTION: Given the sentence "A tan greyhound wearing a gold shirt with a number on it runs down a track." is it true that "The dog is racing."?

SOLUTION: Let's solve this gradually. Just because a greyhound runs down a track does not mean he is racing.
Answer is it is not possible to tell.

QUESTION: Premise: "A man sits in an office with his feet up on the desk."
Hypothesis: "Man relaxing on break."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no

SOLUTION: Let's solve this gradually. It may not be time for break; he may be goofing off.
Answer is it is not possible to tell.

QUESTION: Given the sentence "A young man wearing a purple bandanna around his neck plays the guitar." is it true that "A guitarists performs in front of a crowd."?

SOLUTION: Let's solve this gradually. He could be playing by himself in front of no crowd.
Answer is it is not possible to tell.

QUESTION: Given the sentence "A man in a black suit singing into a microphone on a stage." is it true that "The man sings on the stage."?

SOLUTION:
Let's solve this gradually. The man sings on the stage is a rephrasing of singing into a microphone on a stage.
Answer is yes.