Premise: An elderly man takes his dog for a walk near the water .
Correct statement: It is impossible that a dog is taking his human out to potty .
Incorrect statement: It is almost certain that a dog is taking his human out to potty .
Correct statement: It is impossible that an old man walks with his friend 's dog
Incorrect statement: It is probably the case that an old man walks with his friend 's dog
Correct statement: It is impossible that an old man and a stray dog are walking near a creek .
Incorrect statement: It is likely that an old man and a stray dog are walking near a creek .
Correct statement: It is impossible that a man takes his dog on one last walk before his death .
Incorrect statement: It is highly likely that a man takes his dog on one last walk before his death .
Correct statement: It is highly likely that the man has a dog on its leash .
Incorrect statement: Chances are slight that the man has a dog on its leash .