(N). According to their parameter settings (see above), languages may allow any of these syllabic constituents to branch (into two, maximally). Similarly to Government and Binding syntax, constituents are governing domains in which the head (or governor) governs, that is, establishes an asymmetrical, dependency relation with the governee (or complement) - it is this feature of GP that it takes its name from. A unique property of GP as a theoretical model is the denial of the constituenthood (that is, the theoretical status) of two of the components of classical syllabic theory: the coda on the one hand, and the syllable itself on the other. The coda is shown to be unable to branch universally, which is in GP explained by assuming no coda node in the representation (and only positing what is dubbed "post-nuclear rhymal complement"); the syllable (hypothetically, a higher-order constituent dominating each O-R pair) does not qualify as an intraconstituent governing domain since its head (the R) follows its complement (the O) rather than preceding it, as observed in all other cases of branching constituents. As in mainstream Autosegmental Phonology, GP claims that the O may be empty in certain languages, either word-initially (producing surface vowel-initial words) or word-internally (producing sequences of heterosyllabic vowels, that is, hiatuses), or both. GP also claims that certain languages license empty nuclei, which are subject to the phonological Empty Category Principle (ECP), similarly to the empty categories of syntax. Crucially, all surface word-final consonants are Onsets followed by an empty Nucleus (called domain-final empty nucleus, or FEN), which is licensed by parameter: languages in which the parameter is switched on allow for (surface) consonant-final words (like English), whereas languages in which the parameter is off have all their (content) words ending in a vowel as well as various repair strategies modifying foreign words and loanwords so that they satisfy the constraint (e.g., Italian, Japanese). Another special case is word-initial /sC/ clusters (as in English sport, stop, school), which are analysed in Kaye (1992) as surface manifestations of underlying sequences of an empty N plus rhyme-final /s/ plus O, where the initial empty N is parametrically licensed ("magically", as Kaye puts it) - this effect has been known as "Magic Licensing". GP today Today, whilst Optimality Theory has become the dominant framework in generative, formal phonological theory, GP continues to develop. In 1996, Lowenstamm proposed that syllable structure should be further reduced