If you buy a jewel, you have to find out from people who know, is it a real diamond, or a fake diamond, or real gold, or what type of karat.
(you; buy; a jewel) (people; know; ) (you; to find out; is it a real diamond, or a fake diamond, or real gold, or what type of karat)
you people you
buy know to find out
a jewel
is it a real diamond, or a fake diamond, or real gold, or what type of karat