Bob
  Sex: Male
  Father: Unknown
  Mother: Unknown
  Children:
    Frank
    Lester
    Diana

Nancy
  Sex: Female
  Father: Unknown
  Mother: Unknown
  Children:
    Frank
    Lester
    Diana

Frank
  Sex: Male
  Father: Bob
  Mother: Nancy
  Children: None

Lester
  Sex: Male
  Father: Bob
  Mother: Nancy
  Children: None

Diana
  Sex: Female
  Father: Bob
  Mother: Nancy
  Children: None