user: ### NOW ANSWER:
Question: what is the production code of the episode viewed by 5.36 million u.s. people? 
Columns: ['No. in series', 'No. in season', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code', 'U.S. viewers (millions)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [97.0, 1.0, '"100 A.D." (Part 1)', 'Tim Parsons', 'Keith Heisler', 'October3,2010', '5AJN14', '6.16']
SQL:

assistant: SELECT "Production code" FROM "Table" WHERE "U.S. viewers (millions)" = '5.36';