user: Question: How many viewers saw the episode written by Kevin Biegel & Bill Lawrence?
Columns: ['Series episode', 'Season episode', 'Title', 'Directed by', 'Written by', 'Original air date', 'U.S. viewers (in million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [25.0, 1.0, '" All Mixed Up "', 'Bill Lawrence', 'Kevin Biegel & Bill Lawrence', 'September22,2010', '8.32']
SQL:

assistant: SELECT "U.S. viewers (in million)" FROM "Table" WHERE "Written by" = 'Kevin Biegel & Bill Lawrence';