Question: Hangar-7 is a building in Salzburg, Austria, hosting a collection of historical airplanes, helicopters and Formula One racing cars,Hangar-7 is owned by which Red Bull founder, and an Austrian billionaire businessman? 
Sentence (from "Dietrich Mateschitz"): Dietrich Mateschitz (born 20 May 1944) is an Austrian billionaire businessman.
Relevant evidence: Yes