Premise: Two girls are walking along the street and talking .
Correct statement: It is probably not the case that these girls are childhood friends .
Incorrect statement: It is probable that these girls are childhood friends .
Correct statement: It is unlikely that two friends are heading to school while chatting
Incorrect statement: It is likely that two friends are heading to school while chatting
Correct statement: It is impossible that little boys are stalking the little girls
Incorrect statement: There is a better than even chance that little boys are stalking the little girls
Correct statement: It is highly unlikely that the two girls that were walking together were talking about school
Incorrect statement: It is almost certain that the two girls that were walking together were talking about school
Correct statement: It is impossible that there are people discussing politics on a stroll .
Incorrect statement: It is probably the case that there are people discussing politics on a stroll .