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_2897457_7 (nationality VARCHAR, player VARCHAR)
  ### Question:
  How many nationalities does Alex Nikolic come from?
  ### Answer:
  SELECT COUNT(nationality) FROM table_2897457_7 WHERE player = "Alex Nikolic"