.groupBy(Edge.V1).sortGroup(Edge.V2, Order.ASCENDING).reduceGroup(new TriadBuilder())
.groupBy(Edge.V1).sortGroup(Edge.V2, Order.ASCENDING).reduceGroup(new TriadBuilder())
.groupBy(Edge.V1).sortGroup(Edge.V2, Order.ASCENDING).reduceGroup(new TriadBuilder())
.groupBy(Edge.V1).sortGroup(Edge.V2, Order.ASCENDING).reduceGroup(new TriadBuilder())