Question: What was the founding date for the association football club with the official name Koninklijke Sporting Club Lokeren Oost-Vlaanderen?
Choices:
1921-07-30
1925-04-19
1906-04-18
1873-10-23
1923-01-22
1935-05-31
1981-08-19
1997-11-09
1950-01-01
1864-10-31