Tom sat down on the chair nearest the door (specific) Ann is looking for a job (as a speech, not specific) Did get the job she applied for Ann (specific)The man who wrote this book is famous (specific)
Tom sat down on the chair nearest the door. (specific).Ann is looking for a job. (it is said not specific).Did Ann get the job she applied for? (specific).The man who wrote this book is famous. (specific).