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:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
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.