The Europarl corpus, in particular, is atypical for speech, and in many regards closer to running text, most likely a consequence of it consisting of formal monologue, with an abstract public in mind rather than an individual turn-taker.
the Europarl data boasts the longest words and longest sentences 6 , and scores highest for subordination and infinitive subclauses, as well as the rare past participle subclauses, all of which considerably complicate syntactic trees.