What are the active dates for the Montana State University chapter?
CREATE TABLE table_name_85 (charter_range VARCHAR, school VARCHAR)
SELECT charter_range FROM table_name_85 WHERE school = "montana state university"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_85 (charter_range VARCHAR, school VARCHAR) Question: What are the active dates for the Montana State University chapter? [/INST] SELECT charter_range FROM table_name_85 WHERE school = "montana state university" </s>