(S (S (PP (BASENP (NN 消防) (NN 士)) (INP (IN に) (VB よる) (INCON と))) (COMMA 、) (S (S (PP-SBJ (NP (PP (BASENP (NN 防火) (NN 規則)) (IN の)) (NP (PP (BASENP (NN 重度)) (IN の)) (NN 違反))) (IN が)) (COMMA 、) (VP (BASENP (NN 一部)))) (COMMA 、) (S-NSBJ (VP (PP-OBJ (NP (PP (BASENP (NN 死亡)) (IN の)) (NN 責任)) (IN を)) (VB 負う))))) (PERIOD 。))
消防 士 に よる と 、 防火 規則 の 重度 の 違反 が 、 一部 、 死亡 の 責任 を 負う 。
According to firefighters , serious breaches of fire-safety regulations were partly to blame for the deaths .