user: Question: Who were the writers of episode/s first aired in the US on June 9, 2012?
Columns: ['Series #', 'Production Code', 'Title', 'Directed by', 'Written by', 'United States Original Airdate', 'Canada Original Airdate']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [27.0, 201.0, '"Zipper the Zoomit Dog"', 'Jos Humphrey', 'Mark Drop', 'June 2, 2012', 'September 7, 2012']
SQL:

assistant: SELECT "Written by" FROM "Table" WHERE "United States Original Airdate" = 'June 9, 2012';