RP

Following the English corpora, following the Brown corpus, we tag a certain set of words as "RP" any time they do not take a complement.

The Icelandic equivalents to the above list of words (see link) include, at least (this list in progress): Á, AF, AÐ, FRAM, FRÁ, FYRIR, HJÁ, INN, Í, NIÐUR, MEÐ, OF, TIL, UM, UPP, ÚR, ÚT, VIÐ, YFIR

(MEÐ and VIÐ not following ppcme2, but following the early new high german corpus and penn yiddish corpus).

Note that Á is tagged RP when it does not take a complement, but P elsewhere. Where Á modifies a PP, it is parsed as an RP specifier of PP where possible.

Note that the following are tagged ADV, projecting an ADVP-DIR, ADVP-LOC, or ADVP-TMP: AFTUR, BURT, EFTIR, INNAN, INNI, FRAMAN, FRAMMI, OFAN, NEÐAN, NIÐRI, UNDAN, UNDIR (?), UPPI, UTAN, ÚTI,

These are generally clause (IP)-level constituents, unless they appear in the specifier of a PP, as in the following examples:

(PP (RP Upp-upp)
    (P af-af)
    (NP (N-D héraði-hérað)
        (D-D því-það)

(PP (RP Fram-fram)
    (P-D af-af)
    (NP (N-D dal-dalur) (D-D þessum-þessi)))

Note that if a particle constitutes the *only* complement of a preposition, then it is exceptionally tagged ADV and projects an ADVP. This is in order to maintain the generalization that prepositions take phrasal complements.

Usually, ADVPs do not dominate RPs (http://linguist.is/icelandic_treebank/ADVP#ADVP_usually_does_not_idominate_RP).

Other particles

RPX

See here.

FP

See here.