Premise: "Two boys practicing karate."
Hypothesis: "Rival karate students work to gain an edge over the other through fierce daily sparring."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no Let's be accurate as possible and think first.
The boys are not necessarily rival karate students just because they are practicing karate. Final answer: it is not possible to tell.