CREATE TABLE table_name_50 (competition VARCHAR(255), date VARCHAR(255), result VARCHAR(255), score VARCHAR(255))
Which Competition has a Result of w, and a Score of 2-0, and a Date of may 9, 1954?
    
SQL: SELECT competition FROM table_name_50 WHERE result = "w" AND score = "2-0" AND date = "may 9, 1954"