Count the number of games taken place in park "Columbia Park" in 1907.
SELECT count(*) FROM home_game AS T1 JOIN park AS T2 ON T1.park_id  =  T2.park_id WHERE T1.year = 1907 AND T2.park_name = 'Columbia Park';
Count the number of games = COUNT(*); taken place in park 'Columbia Park' refers to T2.park_name = 'Columbia Park'; in 1907 refers to T1.year = 1907;