docs: protected void expandDependency(IntDependency dependency, double count) {
      //if (Test.prunePunc && pruneTW(dependency.arg))
      //  return;
      if (dependency.head == null || dependency.arg == null) {
        return;
      }
  
      if (dependency.arg.word != STOP_WORD_INT) {
        expandArg(dependency, valenceBin(dependency.distance), count);
      }
      expandStop(dependency, distanceBin(dependency.distance), count, true);
    }