We report in Table 2   The average sentence length in the Europarl corpus is more than double than that in the MultiBerkeley corpus due to the different selection strategy of the sentences.
in general, the two results reflect the different goals of the two approaches: [1] are interested in investigating and adopting unsupervised techniques with poor semantic and syntactic information to automatically annotate a large scale (but noisy) training set and exploit it for semantic role labelling.