create type media.t (			create table meta-article (
	type    text, 				media    setof(media.t), 
	minute  text, 				author-info setof(person.t),
	objects setof(media.t))			color    text, 
create type person.t (				price    number,
	id      text, 				publisher text,
	address text, 				year     date)
	email   text)