Premise: An authority-figure in a white helmet , wearing a yellow vest , and sitting on a yellow motorcycle .
Correct statement: It is probably the case that a traffic officer sits on a yellow motorcycle .
Incorrect statement: We doubt that a traffic officer sits on a yellow motorcycle .
Correct statement: Chances are about even that a man wearing a white helmet , yellow vest and blue pants is sitting on a motorcycle .
Incorrect statement: There is almost no chance that a man wearing a white helmet , yellow vest and blue pants is sitting on a motorcycle .
Correct statement: Chances are slight that a police officer is sitting on his motorcycle and trying to keep the crowd from getting out of hand .
Incorrect statement: There is a very good chance that a police officer is sitting on his motorcycle and trying to keep the crowd from getting out of hand .
Correct statement: It is impossible that a lazy officer directs traffic
Incorrect statement: We believe that a lazy officer directs traffic
Correct statement: It is probable that a police officer sitting on a motorcycle on the road .
Incorrect statement: We doubt that a police officer sitting on a motorcycle on the road .