To evaluate U-DOP* against UML-DOP and other unsupervised parsing models, we started out with three corpora that are also used in Manning (2002, 2004) and<cite> Bod (2006)</cite> : Penn's WSJ10 which contains 7422 sentences ≤ 10 words after removing empty elements and punctuation, the German NEGRA10 corpus and the Chinese Treebank CTB10 both containing 2200+ sentences ≤ 10 words after removing punctuation.