Before revision:  While the distribution of links in the dependency network of this system is scale-free for the intermediate nodes, the richest nodes  deviate from this trend, and exhibit a nonlinearity-induced saturation effect. This also distinguishes the two directed networks of incoming and outgoing links from each other.
After revision:  While the distribution of links in the dependency network of this system is scale-free for the intermediate nodes, the richest nodes deviate from this trend, and exhibit a saturation behaviour arising from the finiteness of semantic possibilities in the network. To preserve uniqueness of operations in the network, the nodes obey an "exclusion principle", with no two nodes being exactly alike in their functionality. The parameters related to finite-size behaviour make a quantitative distinction between the two directed networks of incoming and outgoing links from each other.