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_19526911_1 (arena__capacity_ VARCHAR, head_coach VARCHAR)
  ### Question:
  What is the arena capacity of the arena in the town whose head coach is Roberto Serniotti?
  ### Answer:
  SELECT arena__capacity_ FROM table_19526911_1 WHERE head_coach = "Roberto Serniotti"