Table schema:
CREATE TABLE table_name_31 (winning_team VARCHAR, venue VARCHAR, year VARCHAR, score VARCHAR)

Question: Who is the winning team when the year is more than 2003, the score is 19½–14½ and the venue is harding park golf club?
SQL: SELECT winning_team FROM table_name_31 WHERE year > 2003 AND score = "19½–14½" AND venue = "harding park golf club"