Table: fritz_frauenheim_1939
Columns: date
u_boat
name
nationality
tonnage_grt
fate

Question: Which Name has a Date of 11 june 1940?
SQL: SELECT "name" FROM fritz_frauenheim_1939 WHERE "date" = '11 june 1940'

Question: Which Tonnage (GRT) is the highest one that has a Date of 16 june 1940?
SQL: SELECT MAX("tonnage_grt") FROM fritz_frauenheim_1939 WHERE "date" = '16 june 1940'

Question: Which Nationality has a Name of assyrian?
SQL: SELECT "nationality" FROM fritz_frauenheim_1939 WHERE "name" = 'assyrian'