斯坦福大學NLP：以樹格式打印解析器樹

Question

這是一個愚蠢的問題，但我怎樣才能以樹形格式打印NLP解析樹的結果？

這是我的代碼：

public static void main(String[] args) { 

     Annotation document = 
       new Annotation("My dog also likes eating sausage."); 
      Properties props = new Properties(); 
      props.setProperty("annotators", "tokenize,ssplit,pos,lemma,ner,parse"); 
      StanfordCoreNLP pipeline = new StanfordCoreNLP(props); 
      pipeline.annotate(document); 
      for (CoreMap sentence : document.get(CoreAnnotations.SentencesAnnotation.class)) { 
       Tree constituencyParse = sentence.get(TreeCoreAnnotations.TreeAnnotation.class); 
       System.out.println(constituencyParse); 

     } 
    } 

在執行時，我得到以下結果在Eclipse控制檯：

(ROOT (S (NP (PRP$ My) (NN dog)) (ADVP (RB also)) (VP (VBZ likes) (NP (JJ eating) (NN sausage))) (. .))) 

有沒有辦法在實際的樹格式打印此即事喜歡這個？

(ROOT 
(S 
    (NP (PRP$ My) (NN dog)) 
    (ADVP (RB also)) 
    (VP (VBZ likes) 
    (S 
     (VP (VBG eating) 
     (NP (NN sausage))))) 
(. .))) 

Answer 1

以下語句將以打印格式打印樹。

tree.pennPrint();