CREATE TABLE table_12034 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

Which venue did North Melbourne play away with a crowd greater than 30,000?
SELECT "Venue" FROM table_12034 WHERE "Crowd" > '30,000' AND "Away team" = 'north melbourne'
SELECT "Venue" FROM "table_12034" WHERE "Away team" = 'north melbourne' AND "Crowd" > '30,000'