Premise: A worker wearing a bright vest and black clothes is picking up trash on the ground while people cross the street behind him .
Correct statement: We believe that the man works for the city maintenance department .
Incorrect statement: We doubt that the man works for the city maintenance department .
Correct statement: It is probably the case that a worker picks up trash people are throwing on the ground as they walk by
Incorrect statement: It is probably not the case that a worker picks up trash people are throwing on the ground as they walk by
Correct statement: There is a very good chance that a man in a bright vest , black clothes is picking up trash in a city park while people are crossing a street behind him .
Incorrect statement: We doubt that a man in a bright vest , black clothes is picking up trash in a city park while people are crossing a street behind him .
Correct statement: It is almost certain that the man is removing litter from the ground .
Incorrect statement: It is improbable that the man is removing litter from the ground .
Correct statement: It is unlikely that the worker picks up a cigarette butt with his tool .
Incorrect statement: It is probable that the worker picks up a cigarette butt with his tool .