(S (S (SBAR (S (PP-SBJ (BASENP (NN 救急) (NN 隊員)) (IN が)) (VP (PP (NP (S-REL (PP-SBJ (NP (PP (BASENP (NN 嵐)) (IN の)) (NN 打撃)) (IN が)) (ADJP (ADVP (RB 最も)) (ADJP (JJV 激しかっ) (VP (MD た))))) (NN 地域)) (IN に)) (VP (NN 到達) (VB する)))) (INCON と)) (COMMA 、) (S-NSBJ (VP (PP-OBJ (NP (PP (NP (S-REL-NSBJ (VP (VBV 起こっ) (VP (MD た)))) (NN 損害)) (IN の)) (NN 広がり)) (IN を)) (VP (VP (NN 理解) (VBV し)) (VP (VBV 始め) (VP (MD た))))))) (PERIOD 。))
救急 隊員 が 嵐 の 打撃 が 最も 激しかっ た 地域 に 到達 する と 、 起こっ た 損害 の 広がり を 理解 し 始め た 。
Only once rescue workers reached the hardest hit areas of the storm did they begin to realize the extent of damage that had occurred .