!!!Stanford Parser https://nlp.stanford.edu/software/lex-parser.shtml *Probabilistic Natural Language Parser **PCFG (Probabilistic Context Free Grammar) 確率的文脈自由文法 *オンライン・デモ http://nlp.stanford.edu:8080/parser/ *参考文献 https://nlp.stanford.edu/software/lex-parser.shtml#Citing !!Stanford Dependencies https://nlp.stanford.edu/software/stanford-dependencies.html