relationship_id,subject_entity_id,relationship_type,object_entity_id,confidence,rationale,source_id,review_status,period_id
7777,ENT_NORR_NIFLHEIM,member_of,ENT_NORR_NINE_WORLDS,high,Niflheim is one of the nine worlds (Gylfaginning).,SRC_PROSE_EDDA,reviewed,
7800,ENT_NORR_NIFLHEIM,dwelling_of,ENT_NOR_NIDHOGG,medium,Níðhöggr gnaws the root of Yggdrasil in Niflheim beside Hvergelmir (Gylfaginning; Grímnismál).,SRC_PROSE_EDDA,reviewed,