Who wrote the episode seen by 10.64 million people in the US?
CREATE TABLE table_23528223_2 (written_by VARCHAR, us_viewers__millions_ VARCHAR)
SELECT written_by FROM table_23528223_2 WHERE us_viewers__millions_ = "10.64"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23528223_2 (written_by VARCHAR, us_viewers__millions_ VARCHAR) Question: Who wrote the episode seen by 10.64 million people in the US? [/INST] SELECT written_by FROM table_23528223_2 WHERE us_viewers__millions_ = "10.64" </s>