Father is pushing his son on the track .
We believe that a father pushes his son on the track to avoid being hit by a derailed train .
It is impossible that a father pushes his son on the track to avoid being hit by a derailed train .
We believe that a father pushes his son on the track to avoid being hit by a derailed train .
A father pushes his son on the track to avoid being hit by a derailed train .