Johnny: Should I eat anything particular in Vienna?
Martin: Kaesekreiner! 
Lori: and bier of course!
Johnny: kaeaease what?
Martin: hahah, the street food, you buy it at the little food stands.
Martin: The best one is between the Opera house and Karlsplatz - the square in the city centre
Johnny: Great, I'll try it. Thx!
Johnny should get Kaesekreiner and try the beer while in Vienna.