gremlin> g = TinkerFactory.createModern().traversal()
==>graphtraversalsource[tinkergraph[vertices:6 edges:6], standard]
gremlin> g.V().hasLabel('software').in().
......1>   groupCount().
......2>     by('name').
......3>   unfold().
......4>   filter(select(values).unfold().is(gt(1)))
==>josh=2

g.V().hasLabel('article').
  groupCount()
    by('url').
  unfold().
  filter(select(values).unfold().is(gt(1)))