Neo4j

I would like to retrieve node couples, for which both nodes only differ from each other in a single relationship (with a certain label). I have no clue how to do this :-S Any help? pointers?

HI, I'm a bit stuck building a query. I need to find all nodes that are connected to certain other nodes. this is the query I have currently build: match (rec:Mutation) where rec.cntn_pk in [ 88, 6256, 28551, 28894, 32298, 78073, 96890, 108773, 48338...