code modified from phrasemachine project
method referred from Justeston and Katz (1995)
key idea: extract noun phrases by pattern ((A|N)+|(A|N)*(NP)?(A|N)*)N
phrasemachine only supports English, this project can extract Chinese noun phrases by jieba.
Input(Chinese string)
"中华人民共和国位于亚洲东部，太平洋西岸，是工人阶级领导的、以工农联盟为基础的人民民主专政的社会主义国家。"
Output(index of extracted noun phrases)
[(0, 1), (2, 3), (5, 6), (9, 10), (9, 11), (10, 11), (16, 17), (18, 19), (18, 20), (19, 20), (21, 22), (21, 23), (22, 23)]