CREATE TABLE table_name_17 (episodes NUMBER, tv_station VARCHAR2, japanese_title VARCHAR2)

Which Episodes have a TV Station of ntv, and a Japanese Title of ?
SELECT AVG(episodes) FROM table_name_17 WHERE tv_station = "ntv" AND japanese_title = "あいのうた"
SELECT AVG("episodes") FROM "table_name_17" WHERE "japanese_title" = "あいのうた" AND "ntv" = "tv_station"