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_13643320_2 (gtp_winning_team VARCHAR, circuit VARCHAR, gtu_winning_team VARCHAR)
  ### Question:
  What was the GTP winning team in the round in Portland during which Jack Baldwin become part of the GTU winning team? 
  ### Answer:
  SELECT gtp_winning_team FROM table_13643320_2 WHERE circuit = "Portland" AND gtu_winning_team = "Jack Baldwin"