Consider the question. Test for natural language inference.
Premise: "A biker is doing tricks on his bike."
Hypothesis: "The biker is not just riding his bike in a normal fashion."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
 If the answer is 'yes'; explain the reasoning:
Doing tricks implies not just riding bike in a normal fashion.