A mountain biker is jumping his bike over a rock as another cyclist stands on the trail watching .
There is almost no chance that a mountain biker is jumping his bike over a rock after his companion dared him he would n't do it .
There is almost no chance that a mountain biker is jumping his bike over a rock after his companion dared him he would n't do it .
It is almost certain that a mountain biker is jumping his bike over a rock after his companion dared him he would n't do it .
A mountain biker is jumping his bike over a rock after his companion dared him he would n't do it .