#include <algorithm>
#include <fstream>
#include <functional>
#include <iostream>
#include <iterator>
#include <map>
#include <ranges>
#include <set>
#include <sstream>
#include <string>
#include <vector>

std::map<std::string, std::set<std::string>> read_table(std::istream& is)
{
    std::map<std::string, std::set<std::string>> result { };
    
    std::string line;
    while (std::getline(is, line))
    {
	std::istringstream iss { line };
	std::string entry { };
	std::string tag   { };

	std::set<std::string> tags { };
	
	iss >> entry;
	while (iss >> tag)
	    tags.insert(tag);

	result[entry] = tags;
    }

    return result;
}

int main(int argc, char* argv[])
{
    if (argc <= 2)
    {
	std::cerr << "Usage: " << argv[0] << " FILE [TAGS...]" << std::endl;
	return 1;
    }
    
    std::ifstream ifs { argv[1] };
    std::set<std::string> tags { &argv[2], &argv[argc] };

    auto table = read_table(ifs);

    auto contains = [&tags](auto pair) { return std::includes(pair.second, tags); };

    auto get_entry = [](auto pair) { return pair.first; };
    
    std::ranges::copy(table | std::views::filter(contains)
		            | std::views::transform(get_entry),
		      std::ostream_iterator<std::string>{std::cout, "\n"});
}