definition poc/document {
    relation org: poc/organization
    relation owner: poc/user
    relation viewer: poc/user | poc/organization
    relation editor: poc/user | poc/organization

    permission view = viewer + editor + org->view
}

definition poc/organization {
    relation parent: poc/organization
    relation member: poc/user


    permission view = member + parent->view
}

definition poc/user {}