Premise: Two men , one playing a purple guitar and the other playing an accordion , sitting on stone steps .
Correct statement: It is almost certain that the men are playing songs together .
Incorrect statement: It is impossible that the men are playing songs together .
Correct statement: We believe that a band playing music for some pedestrians .
Incorrect statement: It is highly unlikely that a band playing music for some pedestrians .
Correct statement: It is impossible that two men have escaped from a psychiatric hospital and are playing a song together .
Incorrect statement: It is almost certain that two men have escaped from a psychiatric hospital and are playing a song together .
Correct statement: There is a better than even chance that two men are holding an outside concert .
Incorrect statement: It is impossible that two men are holding an outside concert .
Correct statement: It is impossible that two street performers wait for a crown
Incorrect statement: We believe that two street performers wait for a crown