CREATE TABLE table_52547 ("Home team" TEXT, "Home team score" TEXT, "Away team" TEXT, "Away team score" TEXT, "Venue" TEXT, "Crowd" FLOAT, "Date" TEXT)

What was the home team's score at Princes Park?
SELECT "Home team score" FROM table_52547 WHERE "Venue" = 'princes park'
SELECT "Home team score" FROM "table_52547" WHERE "Venue" = 'princes park'