One man wearing a black t-shirt is helping another man , who is wearing a blue shirt , tie his necktie .
It is impossible that a man in a black t-shirt is waxing the chest of another man .
It is impossible that a man in a black t-shirt is waxing the chest of another man .
It is probably the case that a man in a black t-shirt is waxing the chest of another man .
A man in a black t-shirt is waxing the chest of another man .