During the development of each oscillation, different subgraphs of G2 were identified. Fig. shows the behaviour of the CRN as a single oscillation with the oscillatory period ranging from 0 to 1. The inserts highlight the node for Tr (i=4). At the local minima of the oscillation (per=0 and per=1) the node is only connected with one edge in the graph, whereas at the local maxima (per=0.5), the node is connected with many edges. When transitioning from a minimum to a maximum (e.g., per=0.4), edges are formed, but they disappear during the transition from a maximum to a minimum. Particularly, at per=0.6 the node becomes disconnected from the graph. The extended set of 'snapshots' is appended to Supplementary Information, Fig. , which shows that the discussed transitions are rather abrupt and that, remarkably, new edges are often being formed, even during per between 0.5-1. Hence, contrary to how the CRN is understood (and depicted in Fig. ), the network with all chemical interactions involved does not exists but only subsets hereof.