Premise: A man shaking the hand of a teenager sitting on a bench .
Correct statement: There is a better than even chance that a man is chatting with a teenager he finds on a bench .
Incorrect statement: There is little chance that a man is chatting with a teenager he finds on a bench .
Correct statement: It is impossible that a man is shaking the hand of his son for the first time .
Incorrect statement: There is a very good chance that a man is shaking the hand of his son for the first time .
Correct statement: We believe that two people are sitting on a bench .
Incorrect statement: It is impossible that two people are sitting on a bench .
Correct statement: It is almost certain that they are greeting each other outside .
Incorrect statement: It is impossible that they are greeting each other outside .
Correct statement: It is impossible that a man meets his nephew for the first time in the park .
Incorrect statement: We believe that a man meets his nephew for the first time in the park .