How many different items appear in the enrollment column that joined in 1931, 1949 1?
CREATE TABLE table_261941_1 (enrollment VARCHAR, joined VARCHAR)
SELECT COUNT(enrollment) FROM table_261941_1 WHERE joined = "1931, 1949 1"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_261941_1 (enrollment VARCHAR, joined VARCHAR) Question: How many different items appear in the enrollment column that joined in 1931, 1949 1? [/INST] SELECT COUNT(enrollment) FROM table_261941_1 WHERE joined = "1931, 1949 1" </s>