{
  "version": 1,
  "kind": "familytree",
  "title": "The Okonkwo family, for the reunion",
  "description": "A family tree drawn for a reunion programme: a grandfather's two marriages, half-siblings, identical twins and an adopted grandchild.",
  "people": [
    {"id": "ada", "sex": "female", "deceased": true, "text": "Ada"},
    {"id": "emeka", "sex": "male", "text": "Emeka", "role": "emphasis"},
    {"id": "grace", "sex": "female", "text": "Grace"},
    {"id": "ngozi", "sex": "female", "text": "Ngozi"},
    {"id": "tom", "sex": "male", "text": "Tom"},
    {"id": "chidi", "sex": "male", "text": "Chidi"},
    {"id": "funmi", "sex": "female", "text": "Funmi"},
    {"id": "ike", "sex": "male", "text": "Ike"},
    {"id": "ruth", "sex": "female", "text": "Ruth"},
    {"id": "amara", "sex": "female", "text": "Amara"},
    {"id": "kelechi", "sex": "female", "text": "Kelechi"},
    {"id": "jo", "sex": "female", "gender": "nonbinary", "text": "Jo"},
    {"id": "sam", "sex": "male", "text": "Sam", "adopted": true},
    {"id": "obi", "sex": "male", "text": "Obi"},
    {"id": "dayo", "sex": "female", "text": "Dayo"}
  ],
  "couples": [
    {"between": ["ada", "emeka"], "children": ["ngozi", "chidi"]},
    {"between": ["emeka", "grace"], "children": ["ike"]},
    {"between": ["ngozi", "tom"], "children": ["amara", "kelechi", "jo"], "twins": [{"of": ["amara", "kelechi"], "zygosity": "monozygotic"}]},
    {"between": ["chidi", "funmi"], "children": ["sam", "obi"]},
    {"between": ["ike", "ruth"], "children": ["dayo"]}
  ]
}