Functors for rhematizers, sentence, linking and modal adverbial expressions are functors of atomic nodes (nodetype=atom; see Section 2, "Atomic nodes") which represent free modifications and their function in the sentence is to rhematize, to link the sentence to its preceding context or to express various modal meanings and attitude.

A modification with the functors for rhematizers, sentence, linking and modal adverbial expressions does not function as a modification modifying other modifications within the sentence. The edge between such a node and its mother node (governing node) does not express dependency (for details see also Section 1, "Dependency").