Student: Premise: "A guy checking his phone while at a restaurant."
Hypothesis: "A guy checking his phone  for an important message while at a restaurant."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no.
Teacher: Let's think:
The message does not have to be important for the guy to be checking his phone. It could be something silly or it does not even have to be a message. He could be checking the time. So the final answer is it is not possible to tell.