(S (S (CON しかし) (S (PP-SBJ (NP (S-REL-NSBJ (ADJP (S (PP-SBJ (NP (S-NSBJ (VP (PP-OBJ (BASENP (NN 信管)) (IN を)) (VB 抜く))) (NN の)) (IN が)) (ADJP (RB もっと) (JJ 難しい))))) (NP (PP (BASENP (NN 世界) (NN 大戦)) (IN の)) (NN 名残))) (IN が)) (VP (PP (PP (BASENP (NN 他)) (IN に)) (IN も)) (VB ある)))) (PERIOD 。))
しかし 信管 を 抜く の が もっと 難しい 世界 大戦 の 名残 が 他 に も ある 。
However , there are other remnants of the World Wars that have been much more difficult for the French to defuse .