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_name_72 (start_source VARCHAR, ended VARCHAR)
  ### Question:
  What was the start source that ended on 4 May?
  ### Answer:
  SELECT start_source FROM table_name_72 WHERE ended = "4 may"