user: Question: What is the episode on nhk with average ratings of 9.2%?
Columns: ['Japanese Title', 'Romaji Title', 'TV Station', 'Episodes', 'Average Ratings']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['駅路', 'Shichinin no Onna Bengoshi Series 2', 'TV Asahi', 11.0, '10.9%']
SQL:

assistant: SELECT "Episodes" FROM "Table" WHERE "TV Station" = 'nhk' AND "Average Ratings" = '9.2%';