CREATE TABLE table_52928 ("Home team" CLOB, "Home team score" CLOB, "Away team" CLOB, "Away team score" CLOB, "Venue" CLOB, "Crowd" FLOAT, "Date" CLOB)

How many spectators watched when the away team was Collingwood?
SELECT "Crowd" FROM table_52928 WHERE "Away team" = 'collingwood'
SELECT "Crowd" FROM "table_52928" WHERE "Away team" = 'collingwood'