CREATE TABLE table_52191 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

Who was the home team at Princes Park when the attendance was more than 30,848?
SELECT "Home team" FROM table_52191 WHERE "Crowd" > '30,848' AND "Venue" = 'princes park'
SELECT "Home team" FROM "table_52191" WHERE "Crowd" > '30,848' AND "Venue" = 'princes park'