Premise: Two people standing at the edge of a snow covered cliff .
Correct statement: It is almost certain that people standing on a snow covered cliff .
Incorrect statement: We doubt that people standing on a snow covered cliff .
Correct statement: It is probably the case that a couple are at the edge of the cliff .
Incorrect statement: It is impossible that a couple are at the edge of the cliff .
Correct statement: There is a very good chance that the two people were cold on the cliff .
Incorrect statement: We doubt that the two people were cold on the cliff .
Correct statement: It is probably not the case that it is snowing .
Incorrect statement: It is certain that it is snowing .
Correct statement: It is impossible that two people are looking over a frozen lake
Incorrect statement: There is a very good chance that two people are looking over a frozen lake