Relationship to the Features table , used to find Features record for a given relation.(Relation.relationid= Features.relationid). The resulting set will contain zero or one object.
Razmerje do tabele Features, ki se uporablja za iskanje zapisa Features (markacije) za dano relacijo. (Relation.relationid= Features.relationid). Nabor rezultatov bo vseboval nič predmetov ali enega samega.