code: @Override
      public boolean next() {
          if (!this.iteratingBrlw.next()) {
              if (!this.masterIterator.hasNext()) {
                  return false;
              } else {
                  this.iteratingBrlw = new IteratingBufferedRunningLengthWord(this.masterIterator.next());
              }
          }
          return true;
      }
docs: Move to the next RunningLengthWord
  
  @return whether the move was possible