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Relationships : (PublicWorks/SignsforFieldMaps)

{"relationships": [{
 "id": 0,
 "name": "tSignPosts_tSignsCurrent",
 "backwardPathLabel": "tSignPosts",
 "originLayerId": 0,
 "originPrimaryKey": "Unique_ID",
 "forwardPathLabel": "tSignsCurrent",
 "destinationLayerId": 1,
 "originForeignKey": "UniqueParentID",
 "rules": [],
 "cardinality": "esriRelCardinalityOneToMany",
 "attributed": false,
 "composite": false
}]}