A boy in a black helmet and red long-sleeve shirt rides his motorbike over a rocky stream .
There is a better than even chance that a boy is trying to cross a stream on his motorbike .
There is a better than even chance that a boy is trying to cross a stream on his motorbike .
There is little chance that a boy is trying to cross a stream on his motorbike .
A boy is trying to cross a stream on his motorbike .