A complex instance means that input and output cannot be readily or very accurately related.
The output cannot be easily related in a complex instance.
Complex instances affect the availability of input but not output.
The man leaned on the balcony.
A man in slacks is yodeling.
the boy is playing x-box in his living room
Adults playing poker at a club.
The heat from the engine expands the starter and causes a short.
The gift shop is located upstairs and is close to the walkway entrance.