Several people jogging outside on a sunny day in what seems to be a neighborhood , could be part of a marathon .
It is probably not the case that possible marathon runners are jogging outside on a sunny day through a neighborhood .
It is almost certain that possible marathon runners are jogging outside on a sunny day through a neighborhood .
It is probably not the case that possible marathon runners are jogging outside on a sunny day through a neighborhood .
Possible marathon runners are jogging outside on a sunny day through a neighborhood .