entity_id,period_id,confidence,rationale,source_id,review_status
ENT_GSAGA_GUNNAR,PER_GERMANIC_SAGA,high,"Gjukung king, brother of Gudrun, who wins Brynhild through deceit and conspires in Sigurd's death. Nibelungenlied's Gunther.",SRC_BYOCK_VOLSUNGS,reviewed