S-Dependency

Of the grammatical relations (dependencies) that relate words syntagmatically, some --- in 'movement' constructions --- but not all determine the order of the relata. These are sdependencies, dependencies determining sequence; they also have additional functions, such as regulating what can extract and where it can extract to, and defining subordinacy. From some but --- in the case of coordination and pied piping --- not all s-dependencies is built the surface constituency structure that effects continuity of phrases