この急停車で、燃料の残量の監視に役立つ点検窓に穴が開いた。
(S (S (PP (BASENP (DT この) (NN 急停車)) (IN で)) (COMMA 、) (S (PP (NP (S-REL-NSBJ (VP (PP (NP (PP (NP (PP (BASENP (NN 燃料)) (IN の)) (NNP 残量)) (IN の)) (NN 監視)) (IN に)) (VB 役立つ))) (BASENP (NN 点検) (NN 窓))) (IN に)) (S (PP-SBJ (BASENP (NN 穴)) (IN が)) (VP (VBV 開い) (VP (MD た)))))) (PERIOD 。))