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_21721351_18 (position VARCHAR, player VARCHAR)
  ### Question:
  How many positions is player Tom Glavine?
  ### Answer:
  SELECT COUNT(position) FROM table_21721351_18 WHERE player = "Tom Glavine"