groups:

  - name:   family
    desc:   my family

  - name:   friend
    desc:   my friends

  - name:   business
    desc:   those who works together

people:

  - name:   Sumire
    group:  family
    birth:  2000-01-01
    blood:  A

  - name:   Shiina
    group:  friend
    birth:  1995-01-01
    email:  shiina@mail.org

  - name:   Sakura
    group:  business
    email:  cherry@mail.net
    phone:  012-345-6789
