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

   1 michael:
   2   id: 1
   3   first_name: Michael
   4   primary_contact_id: 2
   5   gender: M
   6 david:
   7   id: 2
   8   first_name: David
   9   primary_contact_id: 3
  10   gender: M
  11 susan:
  12   id: 3
  13   first_name: Susan
  14   primary_contact_id: 2
  15   gender: F