Premise: Two men are involved in sword fighting .
Correct statement: It is impossible that the men are yelling .
Incorrect statement: We believe that the men are yelling .
Correct statement: Chances are about even that the swords are falchions .
Incorrect statement: It is almost certain that the swords are falchions .
Correct statement: It is highly unlikely that two men are battling to the death .
Incorrect statement: We believe that two men are battling to the death .
Correct statement: We doubt that two men are enemies .
Incorrect statement: It is certain that two men are enemies .
Correct statement: It is impossible that the men are fighting to the death .
Incorrect statement: We believe that the men are fighting to the death .