std::string GetNormalizedString() const {
        auto vector = std::vector<std::string>();
        int j = -1;
        for (size_t i = 0; i < name_.length(); ++i) {
            if (!isalpha(name_[i])) {
                if (static_cast<int>(i) != j + 1) {
                    vector.push_back(name_.substr(j + 1, i - j - 1));
                }
                j = i;
            }
        }
        if (j + 1 != static_cast<int>(name_.length())) {
            vector.push_back(name_.substr(j + 1, name_.length() - j));
        }
        for (auto& elem : vector) {
            for (auto& ch : elem) {
                ch = tolower(ch);
            }
        }
        std::sort(vector.begin(), vector.end());
        std::string res = "";
        for (const auto& elem : vector) {
            res += elem;
            res += " ";
        }
        return res.back() == ' ' ? res.substr(0, res.length() - 1) : res;
    }