Consider the question. Test for natural language inference.
Premise: "A group of people are practicing a form of martial arts."
Hypothesis: "People are kicking each other."
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?
People practicing martial arts do not have to be kicking each other.