A man and woman sitting on a parked car .
It is probable that the man and woman look nervously at the stormy sky as their hot-air balloon careens out of control .
It is impossible that the man and woman look nervously at the stormy sky as their hot-air balloon careens out of control .
It is probable that the man and woman look nervously at the stormy sky as their hot-air balloon careens out of control .
The man and woman look nervously at the stormy sky as their hot-air balloon careens out of control .