Before revision:  These subnetworks can be read directly from \mathcal{G} without performing calculations }  on model equations  .
After revision:  These subnetworks can be read directly from \mathcal{G} without performing calculations } on model equations . The algorithm allows us to classify low degree factors. There are two types of degree 1 homeostasis (negative feedback loops and kinetic or Haldane motifs) and there are two types of degree 2 homeostasis (feedforward loops and a degree two appendage motif) .