A little boy is riding his bike on what appears to be a walking trail .
It is certain that a little boy is riding his bike during a downhill race at the local park .
It is impossible that a little boy is riding his bike during a downhill race at the local park .
It is certain that a little boy is riding his bike during a downhill race at the local park .
A little boy is riding his bike during a downhill race at the local park .