For PCFG parsing, we select the Berkeley parser (Petrov and Klein, 2007) . In order to generate wordlevel dependency trees from the PCFG tree, we use the LTH constituent-to-dependency conversion tool 3 written by Johansson and Nugues (2007) . The head finding rules 4 are according to Magerman (1995) and Collins (1997) . Similar approach has been originally used by<cite> Shen et al. (2008)</cite> .