Where can I find Sweet potatoes in Oberriet?

Sweet potatoes can also be found in these cities:

Altach Bludenz Bregenz Dornbirn Feldkirch Fußach Göfis Götzis Hard Hohenems Kennelbach Koblach Laterns Lauterach Lustenau Mäder Nenzing Nüziders Schlins Schnifis Schwarzach Sulz Thüringen Weiler Wolfurt Übersaxen

You can also find this in Oberriet:

Vanilla Sugar Jelly Popsicle Meat Coffee Drinks Rye Roll Canned Tomatoes Sunflower Oil Mustard Brandy