Student: Test for natural language inference.
Premise: "A swimmer in a pool swimming on their back."
Hypothesis: "A woman is doing the backstroke in a pool."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell.
Teacher: Let's think:
A swimmer swimming may not be a woman and may not be doing the backstroke even if they are on their back in the pool. So the final answer is it is not possible to tell.