schema:          FILTER-SET-SCHEMA
type-name:       filter-set
key:             filter-set mandatory single primary lookup
key:             descr mandatory multiple
key:             filter optional single
key:             mp-filter optional single
key:             remarks optional multiple
key:             org optional multiple inverse organisation
key:             tech-c mandatory multiple inverse person
key:             admin-c mandatory multiple inverse person
key:             notify optional multiple inverse person
key:             mnt-by mandatory multiple inverse mntner
key:             mnt-lower optional multiple inverse mntner
key:             changed mandatory multiple
key:             source mandatory single
