Which District has a First elected of 1856, and an Incumbent of william kellogg?
CREATE TABLE table_name_20 (district VARCHAR, first_elected VARCHAR, incumbent VARCHAR)
SELECT district FROM table_name_20 WHERE first_elected = 1856 AND incumbent = "william kellogg"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_20 (district VARCHAR, first_elected VARCHAR, incumbent VARCHAR) Question: Which District has a First elected of 1856, and an Incumbent of william kellogg? [/INST] SELECT district FROM table_name_20 WHERE first_elected = 1856 AND incumbent = "william kellogg" </s>