CREATE TABLE table_204_487 (id NUMBER, "home team" CLOB, "score" CLOB, "visiting team" CLOB, "location" CLOB, "venue" CLOB, "door" CLOB, "surface" CLOB)

what was the surface at most of the games ?
SELECT "surface" FROM table_204_487 GROUP BY "surface" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "surface" FROM "table_204_487" GROUP BY "surface" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY