user: ### NOW ANSWER:
Question: Which Episodes have a TV Station of NTV, and a Japanese Title of あいのうた?
Columns: ['Japanese Title', 'Romaji Title', 'TV Station', 'Episodes', 'Average Ratings']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['大奥～華の乱～', 'Oooku ~Hana no Ran~', 'Fuji TV', 10.0, '15.7%']
SQL:

assistant: SELECT AVG("Episodes") FROM "Table" WHERE "TV Station" = 'NTV' AND "Japanese Title" = 'あいのうた';