relationship_id,subject_entity_id,relationship_type,object_entity_id,confidence,rationale,source_id,review_status,period_id 7519,ENT_GSAGA_SIGURD,slays,ENT_GSAGA_FAFNIR,high,"Sigurd slays Fafnir with the sword Gram, the cycle's defining deed.",SRC_BYOCK_VOLSUNGS,reviewed, 7537,ENT_GSAGA_REGINN,sibling_of,ENT_GSAGA_FAFNIR,high,Reginn and Fafnir are brothers.,SRC_BYOCK_VOLSUNGS,reviewed, 7543,ENT_GSAGA_REGINN,opposes,ENT_GSAGA_FAFNIR,high,Reginn incites the killing of his brother Fafnir to seize the hoard.,SRC_BYOCK_VOLSUNGS,reviewed,