How to detail position data from node a and node b when we have (a)-[rel_1]->(b) and (b)-[rel_2]->(a)

[asperlinga]

Thanks Llewellyn, your answer is enough :-)

I had just read this article on matrix and graph https://towardsdatascience.com/matrices-are-graphs-c9034f79cfd8.
On the dimensionality of the graphs I developed a small project that you can see here: From Neo4j graph to Virtual Reality concept map.