text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  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?
  ### Answer:
  SELECT COUNT(enrollment) FROM table_261941_1 WHERE joined = "1931, 1949 1"