Question: What German aircraft designed by Seiegfried and Walter Günter at Heinkel Flugzeugwerke in 1934 was operated by Lehrgeschwader 1?
Sentence (from "Lehrgeschwader 1"): "Lehrgeschwader" 1 (LG 1) (Demonstration Wing 1) formerly "Lehrgeschwader Greifswald" was a Luftwaffe multi-purpose unit during World War II, operating fighter, bomber and dive-bomber "Gruppen".
Relevant evidence: Yes