[graph1_on_person
     [any person (^Civil status^),
          first_name: a string,
          may have for middle_name: a string,
          may have for surname: a string,
          may have for maiden_name: a string,
          may have for previous_surname: a string,
          may have for alias: a string,
          may have for pseudonym: a string,
          experiencer of: a birth,
          may be citizen of: a country (^$(explore)$^),
          may have for identifier (^$(explore)$^): a string,
          may have for email_address: a string,
          may have for phone_No (^$(explore)$^): a string,
          may have for home_page: a document_element,
          may have for address (^$(explore)$^): an address,
          kind: male_or_female_person (^$(explore 1)$^),
          kind: in_relationship_person (^$(explore 1)$^)]
];