The task of parsing is to design software that can identify syntactic components in a sentence automatically . the performance of many realistic applications such as machine translation , information extraction would be improved if the right syntactic structure was available 許多自然語言處理任務(wù),如機(jī)器翻譯、信息獲取、自動文摘等都要依賴句法分析的精確結(jié)果才能最終獲得滿意的解決。