[graph1_on_research_staff
     [any research_staff (^$(no inheritance)$^),
          may have for project: a project,
          member: several person,
          may have for publication: several publication,
          may have for report: several report,
          may have for software: several software,
          may have for see_also: several entity,
          may have for home_page: a document_element]
];