Fig. 7
From: Efficient orbit-aware triad and quad census in directed and undirected graphs
All directed non-isomorphic subgraphs with three nodes (triads). The graph labeling is based on the number of mutual, asymmetric, and null dyads in each triad with an additional indicator where needed (Wasserman and Faust 1994). Node labels refer to the orbits and were enumerated such that each orbit is identified with a single triad