anchor.diff:  
   [gremlin-groovy,modern]
   ----
  -g.V().has(outE('created').or().outE('knows')).values('name')
  +g.V().where(outE('created').or().outE('knows')).values('name')
   ----
   
   [[order-step]]
  
positive.code: <3> Which of marko's collaborators have worked on more than 1 project? (using a traversal)
  
  IMPORTANT: Please see <<using-where-with-match,`match().where()`>> and <<using-where-with-select,`select().where()`>> for how `where()` can be used in conjunction with `Map<String,Object>` projecting steps -- i.e. `Scope.local`.
  
  [[a-note-on-barrier-steps]]
  A Note on Barrier Steps
  
negative.code: g.V().values('age').is(32)
  g.V().values('age').is(lte(30))
  g.V().values('age').is(inside(30, 40))
  g.V().where(__.in('created').count().is(1l)).values('name') <1>
  g.V().where(__.in('created').count().is(gte(2l))).values('name') <2>
  g.V().where(__.in('created').values('age').
                             mean().is(inside(30d, 35d))).values('name') <3>
  ----
  
  