Premise: Two people sit on top of a cliff overlooking a river .
Correct statement: It is highly unlikely that two people at the grand canyon .
Incorrect statement: It is probable that two people at the grand canyon .
Correct statement: Chances are about even that two women sit on a cliff .
Incorrect statement: It is impossible that two women sit on a cliff .
Correct statement: It is impossible that the people are about to dive into the river .
Incorrect statement: We believe that the people are about to dive into the river .
Correct statement: It is probable that two people are contemplating their life from the top of a cliff .
Incorrect statement: It is probably not the case that two people are contemplating their life from the top of a cliff .
Correct statement: We doubt that tall humans sitting .
Incorrect statement: We believe that tall humans sitting .