There is a little boy in a red jacket walking down the railroad tracks and holding a stick .
It is impossible that a boy walks down the tracks with his dog , throwing a stick for the dog .
It is impossible that a boy walks down the tracks with his dog , throwing a stick for the dog .
It is highly likely that a boy walks down the tracks with his dog , throwing a stick for the dog .
A boy walks down the tracks with his dog , throwing a stick for the dog .