hello,
I'm trying to compute the k-hop using cypher.

The idea is the following :
 The nodes at distance 1 from start node should be marked "NodesDist1",
 then, nodes at distance 2 should be names "NodesDist2" but they should not 
be the same as "NodeDistance1".
 Again, the nodes at Distance 3, should be different than the in NodesDist1 
and NodesDistance2. See Image for more clarifications.

<https://lh3.googleusercontent.com/-8Add_nPhxMs/Vw3q9iMmuwI/AAAAAAAAAHc/x4vINs9bVa8aS1omuWxUbIn7uYwe3WH7gCLcB/s1600/untitled.png>
























Just getting the nodes from the outgoing edges is not a good solution 
because the nodes from the outgoing edges may already been seen in, for 
instance, NodesDist1.

So I need I a way to filter them.


This is what i got from the moment. However the "where filter" is not 
working, apparatently i cannot do that ? 


MATCH (a:Person{name:1})-->b-->c  
with collect(DISTINCT(b.name)) as nodesDist1, collect(DISTINCT(c.name)) as 
nodesDist2, 
where filter(x IN nodesDist2 WHERE not(x in nodesDist1)) as res return 
res");  


So I'm looking for a way to do this query in cypher.

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