Student asked: Premise: "A woman in all black throws a football indoors while man looks at his cellphone in the background."
Hypothesis: "A woman throws a football while the man takes a photo with his cellphone."
Do we know that the hypothesis entailed by the premise?
Teacher's response: Let's think. A woman in all black throws a football indoors while man looks at his cellphone in the background does not imply she throws a football while the man takes a photo with his cellphone. The answer is it is not possible to tell.

Student asked: If "Man and woman in badges smile and shake hands while posing for picture." does that mean that "Man and woman in badges frown for picture while being arrested."?
Options:
- yes
- it is not possible to tell
- no
Teacher's response: Let's think. When the man and woman hands shake badges for the picture while being arrested. The answer is no.

Student asked: Can we conclude from "One man plays the violin while another drums on a piece of metal." that "The men are playing the guitar and the bass."?
Options:
- yes
- no
- it is not possible to tell
Teacher's response: Let's think. Violin is different than a guitar and drums is different than bass. The answer is no.

Student asked: Premise: "Three people are sitting on a picnic table along with two cameras and a drum."
Based on this premise, can we conclude that the hypothesis "Three people sit at a picnic table." is true?
Options:
- yes
- it is not possible to tell
- no
Teacher's response:
Let's think. Sitting on a picnic table is a rephrase of sit at a picnic table. The answer is yes.