There is some confusion 'concerning' [='regarding'] his current whereabouts.
news 'concerning' friends
(..) If you don't have one in your library, I've read "The Seven-Pointed Star." Then you'll remember the passages concerning buggery and perjury. Your grandchildren will be punished in the same manner as anyone who breaks the sacred laws. Half the men, (..)2015 TvShow: Game of Thrones Title: The Gift Season: 5 Episode 7