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();
}