Toy input example. A toy example of an input problem with two distinct JACSs and with front and back nodes. Both JACSs (circled) are connected in the interaction network and heavy in the similarity graph. Note that the four front nodes in the left JACS form a connected subgraph only after the addition of the back node.
Ulitsky and Shamir BMC Systems Biology 2007 1:8 doi:10.1186/1752-0509-1-8