> This sounds neat, but once you set the states aside - what's left? :) For every graph with nodes, there is a corresponding line graph without nodes :) https:

> This sounds neat, but once you set the states aside - what's left? :) For every graph with nodes, there is a corresponding line graph without nodes :) https://en.wikipedia.org/wiki/Line_graph#Example https://en.wikipedia.org/wiki/Line_graph#Example