(S (S (SBAR (SBAR (S-NSBJ (VP (PP (NP (S-REL-NSBJ (VP (ADVP (ADVP (NN 簡単) (INRB に)) (IN は)) (VP (VBV 入れ) (VP (MD ない))))) (NN 草地)) (IN に)) (VB 入る))) (NN ため)) (IN に)) (COMMA 、) (S (PP-SBJ (BASENP (NN 特殊) (NN 車両)) (IN も)) (VP (VP (VBO 使わ) (VP (VBV れ))) (VP (MD た))))) (PERIOD 。))
簡単 に は 入れ ない 草地 に 入る ため に 、 特殊 車両 も 使わ れ た 。
Special vehicles were also used to enter the field , which was n't easily accessible .