4 The Apertium linguistic data contains 326 228 entries in the bilingual dictionary, 106 firstlevel rules, 31 second-level rules, and 7 third-level rules for Spanish-English; and 21 593, 169, 79 and 6, respectively, for Breton-French (see section 2.2 for a description of the different rule levels).
the results show that our hybrid approach outperforms both pure RBMt and PBSMt systems in terms of BLEU.