Student: Test for natural language inference.
Premise: "A rock climber with a city and bay behind him."
Hypothesis: "The guy smiling at the camera right before reaching the summit."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell.
Teacher: Let's think:
Not all climbers take a photo right before reaching the summit. So the final answer is it is not possible to tell.