Table: marshall_commissions
Columns: district
2012_commission
2010_commission
2007_commission
2002_commission
1999_commission

Question: Who is on the 2002 commission from district 3?
SQL: SELECT "2002_commission" FROM marshall_commissions WHERE "district" = 'District 3'

Question: What district for charlie oliver of the 2012 commission?
SQL: SELECT "district" FROM marshall_commissions WHERE "2012_commission" = 'Charlie Oliver'

Question: Who was on the 2012 commission and the 1999 commission with john wilborn?
SQL: SELECT "2012_commission" FROM marshall_commissions WHERE "1999_commission" = 'John Wilborn'

Question: How many people named gloria moon were on the 2002 and 2012 commissions?
SQL: SELECT COUNT("2002_commission") FROM marshall_commissions WHERE "2012_commission" = 'Gloria Moon'