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 PersonFriend (friend VARCHAR, name VARCHAR, YEAR INTEGER)
  ### Question:
  Who is the friend of Zach with longest year relationship?
  ### Answer:
  SELECT friend FROM PersonFriend WHERE name = 'Zach' AND YEAR = (SELECT MAX(YEAR) FROM PersonFriend WHERE name = 'Zach')