LHSN, as shown by<cite> Galley et al. (2006)</cite> , cannot accurately restore the true conditional probabilities of the target sentences given the source sentences in the training corpus. 4 Because the two normalization methods have their 4 Based on LHSN, the difference between the probability of a big Template and the product of the probabilities of E-step: for all pair of syntax tree T and target string S do for all TTS Template t do EC(t)+ = (Rose et al., 1992 ) is is used in our system to speed up the training process, similar to Goldwater et al. (2006) .