}
    return 0;
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }
    if (object instanceof LexicographicalOrdering) {
      LexicographicalOrdering<?> that = (LexicographicalOrdering<?>) object;
      return this.elementOrder.equals(that.elementOrder);
    }
    return false;
  }

  @Override
  public int hashCode() {

    }
    return 0;
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }
    if (object instanceof LexicographicalOrdering) {
      LexicographicalOrdering<?> that = (LexicographicalOrdering<?>) object;
      return this.elementOrder.equals(that.elementOrder);
    }
    return false;
  }

  @Override
  public int hashCode() {