Table: lydia_litvyak_battle
Columns: date_dd_mm_yyyy
soviet_unit
aircraft_flown
enemy_aircraft
axis_unit

Question: What was the date of the victory when the Axis Unit was 5./jg 3?
SQL: SELECT "date_dd_mm_yyyy" FROM lydia_litvyak_battle WHERE "axis_unit" = '5./jg 3'

Question: What was the Soviet Unit when the Enemy Aircraft was bf.109g-2 "yellow 2"?
SQL: SELECT "soviet_unit" FROM lydia_litvyak_battle WHERE "enemy_aircraft" = 'bf.109g-2 "yellow 2"'

Question: What was the date of the victory when the Soviet Unit was 73 giap, and the Enemy Aircraft was bf.109g-? w.nr.?
SQL: SELECT "date_dd_mm_yyyy" FROM lydia_litvyak_battle WHERE "soviet_unit" = '73 giap' AND "enemy_aircraft" = 'bf.109g-? w.nr.?'

Question: What was the aircraft flown when the axis unit was luftwaffe (**) and the enemy aircraft was ju.88?
SQL: SELECT "aircraft_flown" FROM lydia_litvyak_battle WHERE "axis_unit" = 'luftwaffe (**)' AND "enemy_aircraft" = 'ju.88'

Question: What was the enemy aircraft on 14.09.1942, when the Soviet Unit was 437 iap?
SQL: SELECT "enemy_aircraft" FROM lydia_litvyak_battle WHERE "soviet_unit" = '437 iap' AND "date_dd_mm_yyyy" = '14.09.1942'

Question: What is the axis unit of the aircraft yak-1b "white 23", flown on 19.07.1943?
SQL: SELECT "axis_unit" FROM lydia_litvyak_battle WHERE "aircraft_flown" = 'yak-1b "white 23"' AND "date_dd_mm_yyyy" = '19.07.1943'