Use reasoning to lead to the answer of the following question:
Can we conclude from "Dirt biker focuses on the next obstacle." that "A woman practices for her motocross competition."?\nOptions:\n- yes\n- no\n- it is not possible to tell

it is not possible to tell
A dirt biker can be a male or female.

We do not know that it is a woman.

Dirt bikers may have many obstacles.

We do not know that the dirt biker's obstacle is a motocross competition.

.

Final answer: it is not possible to tell