您可以使用Stanford dependency parser,也可以使用此relevant paper。您也可以查看他们的在线工具。例如,对于您的句子,您可以从斯坦福解析器获得以下内容。
您的查询
The product itself is good however this company has a terrible service.
标记
The/DT product/NN itself/PRP is/VBZ good/JJ however/RB this/DT company/NN has/VBZ a/DT terrible/JJ service/NN ./.
解析
(ROOT
(S
(NP (DT The) (NN product))
(ADVP (PRP itself))
(VP (VBZ is)
(ADJP (JJ good))
(SBAR
(WHADVP (RB however))
(S
(NP (DT this) (NN company))
(VP (VBZ has)
(NP (DT a) (JJ terrible) (NN service))))))
(. .)))
通用依赖
det(product-2, The-1)
nsubj(good-5, product-2)
advmod(good-5, itself-3)
cop(good-5, is-4)
root(ROOT-0, good-5)
advmod(has-9, however-6)
det(company-8, this-7)
nsubj(has-9, company-8)
dep(good-5, has-9)
det(service-12, a-10)
amod(service-12, terrible-11)
dobj(has-9, service-12)