If we ask a vague question, such as, 'What is poetry?' we expect a vague answer, such as, 'Poetry is the music of words,' or 'Poetry is the linguistic correction of disorder.'
I was familiar with that and 'Rio Bravo.' 'Rio Bravo' was what John Carpenter did, that brilliant move of taking a western and turning it into an urban flick. And from there you got, you know, all the cop genre movies of the time.