Man in a long-sleeved black shirt , appears to be engaged in dance , in front of a blue sign that entails information about specific locations .
There is a very good chance that a man in a black shirt practices for a dance contest .
It is impossible that a man in a black shirt practices for a dance contest .
There is a very good chance that a man in a black shirt practices for a dance contest .
A man in a black shirt practices for a dance contest .