user: Question: What was the date of the victory when the Soviet Unit was 73 GIAP, and the Enemy Aircraft was Bf.109G-? W.Nr.?
Columns: ['Date (dd.mm.yyyy)', 'Soviet Unit', 'Aircraft flown', 'Enemy Aircraft', 'Axis Unit']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['13.09.1942', '437 IAP', 'Yak-1 "White 02"', 'Ju.88', 'Luftwaffe (**)']
SQL:

assistant: SELECT "Date (dd.mm.yyyy)" FROM "Table" WHERE "Soviet Unit" = '73 GIAP' AND "Enemy Aircraft" = 'Bf.109G-? W.Nr.?';