#include <algorithm>
#include <vector>
#include <numeric>
#include <iostream>
#include <iterator>
#include <string>
#include <random>
#include <functional>
#include <cctype>
using namespace std;

int main()
{
    vector<string> words { istream_iterator<string>{cin},
                           istream_iterator<string>{} };
    vector<size_t> indexes (words.size());
    iota(begin(indexes), end(indexes), 0);
    shuffle(begin(indexes), end(indexes), mt19937{random_device{}()});
    size_t number_of_elements { words.size() / 7 };
    sort(begin(indexes), begin(indexes) + number_of_elements, greater<>{});
    for_each(begin(indexes), begin(indexes) + number_of_elements,
            [&words](size_t index){ words.erase(begin(words)+index); });
    string const vowels { "aoeiyu" };
    transform(begin(words), end(words),
              ostream_iterator<string>{cout, " "},
              [&vowels](string s)
              {
                transform(begin(s),end(s),begin(s), ::tolower);
                if ( s.length() < 8 )
                    return s;
                size_t last_vowel { s.find_last_of(vowels) };
                s.erase(last_vowel);
                return s;
              });

}