Premise: A bird perches in an empty window frame .
Correct statement: Chances are about even that the bird has been perching for a while .
Incorrect statement: It is certain that the bird has been perching for a while .
Correct statement: There is a very good chance that the bird is wild .
Incorrect statement: There is almost no chance that the bird is wild .
Correct statement: There is a better than even chance that a bird gazes into an empty home
Incorrect statement: It is impossible that a bird gazes into an empty home
Correct statement: It is probable that the glass is broken
Incorrect statement: There is little chance that the glass is broken
Correct statement: It is certain that the bird has legs .
Incorrect statement: There is almost no chance that the bird has legs .