Group is used when a central atom has two terminal atoms bonded by single bonds and a terminal atom bonded with two pairs of electrons (a double bond).
With 1,500 vine acres and 17 wineries, this region specializes in many different varieties. See the Wineries. Prosser The birthplace of the Washington wine industry, this quaint little town is home to more than 30 wineries, 12 of which are within walking distance of each other.
BC wineries who do a good job with Foch, apart from Quails' Gate, are St. Hubertus, Lang and Alderlea Vineyards on Vancouver Island, where their proprietary label Clarinet (100% Foch) sells out as soon as it hits the shelves.