What is the episode number that was first broadcast on 3 September 2010?
CREATE TABLE table_23575917_4 (episode VARCHAR, first_broadcast VARCHAR)
SELECT episode FROM table_23575917_4 WHERE first_broadcast = "3 September 2010"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_23575917_4 (episode VARCHAR, first_broadcast VARCHAR) Question: What is the episode number that was first broadcast on 3 September 2010? [/INST] SELECT episode FROM table_23575917_4 WHERE first_broadcast = "3 September 2010" </s>