Table: tv_episode_data_21
Columns: col
episode
writer
director
original_air_date
viewing_figure

Question: How many different directors are associated with the writer Gaby Chiappe?
SQL: SELECT COUNT("director") FROM tv_episode_data_21 WHERE "writer" = 'Gaby Chiappe'

Question: What writers are associated with a viewing figure of 7.01 million?
SQL: SELECT "writer" FROM tv_episode_data_21 WHERE "viewing_figure" = '7.01 million'

Question: What are all episodes with a viewing figure of 6.72 million?
SQL: SELECT "episode" FROM tv_episode_data_21 WHERE "viewing_figure" = '6.72 million'

Question: What original air dates are associated with a viewing figure of 7.27 million?
SQL: SELECT "original_air_date" FROM tv_episode_data_21 WHERE "viewing_figure" = '7.27 million'