private static @Nullable EliminableExpression createEliminableExpression(@NotNull PsiParenthesizedExpression parenthesized) {
    DistributiveExpression distributive = DistributiveExpression.create(parenthesized);
    AssociativeExpression additive = AssociativeExpression.create(parenthesized);
    if (distributive == null) return additive;
    if (additive == null) return distributive;
    if (distributive.getExpression() == null) return additive;
    return distributive;
  }
private static @Nullable EliminableExpression createEliminableExpression(@NotNull PsiParenthesizedExpression parenthesized)