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Relationships : (Highway/RoadClosures)

{"relationships": [{
 "id": 0,
 "name": "RoadCenterlines_RoadClosureTbl",
 "backwardPathLabel": "RoadCenterlines",
 "originLayerId": 0,
 "originPrimaryKey": "OBJECTID",
 "forwardPathLabel": "RoadClosureTbl",
 "destinationLayerId": 1,
 "originForeignKey": "OBJECTID",
 "rules": [{
  "ruleID": 1,
  "originSubtypeCode": 0,
  "originMinimumCardinality": -1,
  "originMaximumCardinality": -1,
  "destinationSubtypeCode": 0,
  "destinationMinimumCardinality": -1,
  "destinationMaximumCardinality": -1
 }],
 "cardinality": "esriRelCardinalityOneToOne",
 "attributed": false,
 "composite": true
}]}