user: Question: Who directed the episode with a production code of 4WAB04?
Columns: ['No. in series', 'No. in season', 'Title', 'Directedby', 'Writtenby', 'Originalairdate', 'Production code', 'U.S. viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [40.0, 1.0, '"Out"', 'Paris Barclay', 'Kurt Sutter', 'September6,2011', '4WAB01', '4.93']
SQL:

assistant: SELECT "Directedby" FROM "Table" WHERE "Production code" = '4WAB04';