Full description
The Link Grammar Parser is a syntactic parser of English, Russian, Arabic
    and Persian (and other languages as well), based on Link Grammar, an
    original theory of syntax and morphology. Given a sentence, the system
    assigns to it a syntactic structure, which consists of a set of labelled
    links connecting pairs of words. The parser also produces a "constituent"
    (HPSG style phrase tree) representation of a sentence (showing noun phrases,
    verb phrases, etc.).