For comparability with the study in <cite>Nilsson et al. (2007)</cite> , and because we used a slightly modified version of their algorithm, we also tested the approach on the versions of the Czech and Slovenian treebanks that they worked on, respectively version 1.0 of the PDT (Hajic et al., 2001 ) and the 2006 version of SDT (Deroski et al., 2006) .