Share 'Network of Curves'

Hi guys, I have been racking my brains over this for a while now but can't quite seem to figure it out. I have a whole load of lines, originally from a 3d Voronoi diagram that I have cut up and added booleans to etc, some touch and others don't but what I have is effectively a bunch of curve networks (see attached Rhino file) Could anyone guide me towards grouping these in to data branches by…