CREATE TABLE table_52121 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

Which Away team score has a Venue of princes park?
SELECT "Away team score" FROM table_52121 WHERE "Venue" = 'princes park'
SELECT "Away team score" FROM "table_52121" WHERE "Venue" = 'princes park'