rails--rails/activerecord/test/fixtures/people.yml

michael:
  id: 1
  first_name: Michael
  primary_contact_id: 2
  number1_fan_id: 3
  gender: M
david:
  id: 2
  first_name: David
  primary_contact_id: 3
  number1_fan_id: 1
  gender: M
susan:
  id: 3
  first_name: Susan
  primary_contact_id: 2
  number1_fan_id: 1
  gender: F