Consider the question. Test for natural language inference.
Premise: "Three children are posing on a playground slide."
Hypothesis: "Three children about to tumble down a slide."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
 What is the step-by-step reasoning process to arrive at the answer: it is not possible to tell?
Not all children near slides are about to tumble down them.