docs: public static DTree convertTreeBankToCoNLLX(final String constituentTree) {
          Tree tree = Tree.valueOf(constituentTree);
  
          SemanticHeadFinder headFinder = new SemanticHeadFinder(false); // keep copula verbs as head
          Collection<TypedDependency> dependencies = new EnglishGrammaticalStructure(tree, string -> true, headFinder).typedDependencies();
          List<CoreLabel> tokens = tree.taggedLabeledYield();
          StanfordParser.tagLemma(tokens);
  
          return StanfordTreeBuilder.generate(tokens, dependencies, null);
      }