relationship_id,subject_entity_id,relationship_type,object_entity_id,confidence,rationale,source_id,review_status,period_id
1900,ENT_OCEANUS,parent_of,ENT_ILISSUS,high,The Athenian river Ilissos is son of Okeanos and Tethys in the standard genealogical tradition.,SRC_APOLLODORUS_LIBRARY,approved,