List the total number of institutions founded in Rock Island, Illinois.
CREATE TABLE table_18483171_1 (founded VARCHAR, location VARCHAR)
SELECT COUNT(founded) FROM table_18483171_1 WHERE location = "Rock Island, Illinois"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18483171_1 (founded VARCHAR, location VARCHAR) Question: List the total number of institutions founded in Rock Island, Illinois. [/INST] SELECT COUNT(founded) FROM table_18483171_1 WHERE location = "Rock Island, Illinois" </s>