Question: What Event used Submission (rear naked choke) with 9-4?
SQL: SELECT "Event" FROM "2-12278106-2" WHERE "Method" = 'Submission (rear naked choke)' AND "Record" = '9-4';

Question: What event was Donald Ouimet involved?
SQL: SELECT "Event" FROM "2-12278106-2" WHERE "Opponent" = 'Donald Ouimet';