public AttributedRelationshipClassToken Create( 
   AttributedRelationshipClassDescription attributedRelationshipClassDescription
)

public void CreateAttributedRelationship(SchemaBuilder schemaBuilder)
{
  // Creating a 'BuildingType' table with two fields - BuildingType and BuildingTypeDescription
  FieldDescription buildingType = FieldDescription.CreateIntegerField("BuildingType");
  FieldDescription buildingTypeeDescription = FieldDescription.CreateStringField("BuildingTypeDescription", 100);
  TableDescription buildingTypeDescription = new TableDescription("BuildingType", new List<FieldDescription>() { buildingType, buildingTypeeDescription });
  TableToken buildingtypeToken = schemaBuilder.Create(buildingTypeDescription);

  // Creating a 'Building' feature class with three fields - BuildingId, Address, and BuildingType
  FieldDescription buildingId = FieldDescription.CreateIntegerField("BuildingId");
  FieldDescription buildingAddress = FieldDescription.CreateStringField("Address", 100);
  FeatureClassDescription featureClassDescription = new FeatureClassDescription("Building", new List<FieldDescription> { buildingId, buildingAddress, buildingType }, new ShapeDescription(GeometryType.Polygon, SpatialReferences.WGS84));
  FeatureClassToken buildingToken = schemaBuilder.Create(featureClassDescription);

  // Creating M:M relationship between the 'Building' feature class and 'BuildingType' table
  AttributedRelationshipClassDescription attributedRelationshipClassDescription = new AttributedRelationshipClassDescription("BuildingToBuildingType", new FeatureClassDescription(buildingToken),
      new TableDescription(buildingtypeToken), RelationshipCardinality.ManyToMany, "OBJECTID", "BuildingID", "OBJECTID", "BuildingTypeID");

  // Adding optional attribute field in the intermediate table - 'OwnershipPercentage' field
  attributedRelationshipClassDescription.FieldDescriptions.Add(FieldDescription.CreateIntegerField("OwnershipPercentage"));

  schemaBuilder.Create(attributedRelationshipClassDescription);
  schemaBuilder.Build();
}