Premise: Craftsman is working with wood and a nail gun .
Correct statement: It is impossible that he is making a boat .
Incorrect statement: Chances are about even that he is making a boat .
Correct statement: There is almost no chance that a man makes a bookcase
Incorrect statement: It is probable that a man makes a bookcase
Correct statement: There is almost no chance that he is making a shelf .
Incorrect statement: We believe that he is making a shelf .
Correct statement: Chances are about even that the man is fixing something .
Incorrect statement: It is highly unlikely that the man is fixing something .
Correct statement: There is almost no chance that a craftsman is building a bookcase .
Incorrect statement: Chances are about even that a craftsman is building a bookcase .