Examples of edu.stanford.nlp.semgraph.SemanticGraph.childPairs()

        // find subject
        SemanticGraph dependency = sentences.get(sentNum).get(SemanticGraphCoreAnnotations.CollapsedDependenciesAnnotation.class);
        IndexedWord w = dependency.getNodeByWordPattern(word);


        if (w != null) {
          for(Pair<GrammaticalRelation,IndexedWord> child : dependency.childPairs(w)){
            if(child.first().getShortName().equals("nsubj")) {
              String subjectString = child.second().word();
              int subjectIndex = child.second().index();  // start from 1
              IntTuple headPosition = new IntTuple(2);
              headPosition.set(0, sentNum);

      if(w.get(CoreAnnotations.LemmaAnnotation.class).equals("report") || w.get(CoreAnnotations.LemmaAnnotation.class).equals("say")) {
        String word = w.get(CoreAnnotations.TextAnnotation.class);
        SemanticGraph dependency = lastSent.get(SemanticGraphCoreAnnotations.CollapsedDependenciesAnnotation.class);
        IndexedWord t = dependency.getNodeByWordPattern(word);


        for(Pair<GrammaticalRelation,IndexedWord> child : dependency.childPairs(t)){
          if(child.first().getShortName().equals("nsubj")) {
            int subjectIndex = child.second().index();  // start from 1
            IntTuple headPosition = new IntTuple(2);
            headPosition.set(0, paragraph.size()-1 + paragraphOffset);
            headPosition.set(1, subjectIndex-1);

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