Figure 4
From: An exact approach for studying cargo transport by an ensemble of molecular motors
The graph that represents the symbolic dynamics in the case of with the simplifying additional assumption that the two motors are never at a distance larger than four locations from each other. A red arrow represents a detachment, a green arrow represents an attachment and a black arrow represents a forward step of one of the two motors. As it can be seen the undirected version of this graph is connected.