user: Question: What is the lowest number of episodes in a series with an airing date of 12 Jan- 6 Feb?
Columns: ['Airing date', 'English title (Chinese title)', 'Number of episodes', 'Genre', 'Official website']
Types: ['text', 'text', 'real', 'text', 'text']
Sample row: ['12 Jan- 6 Feb', 'A Tough Side of a Lady 花木蘭', 20.0, 'Costume action', 'Official website']
SQL:

assistant: SELECT MIN("Number of episodes") FROM "Table" WHERE "Airing date" = '12 Jan- 6 Feb';