Which district did William A. Burwell (Dr) belong to? 
CREATE TABLE table_2668347_22 (district VARCHAR, candidates VARCHAR)
SELECT district FROM table_2668347_22 WHERE candidates = "William A. Burwell (DR)"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_2668347_22 (district VARCHAR, candidates VARCHAR) Question: Which district did William A. Burwell (Dr) belong to?  [/INST] SELECT district FROM table_2668347_22 WHERE candidates = "William A. Burwell (DR)" </s>