#include <iostream>
#include <vector>
#include <string>
#include <unordered_map>

using foreign_word = std::string;
using foreign_words = std::vector<foreign_word>;

using language = std::string;
using language_words_map = std::unordered_map<language, foreign_words>;

int main() {
	language_words_map lwm = {
		{ "deutch", {"een", "twee", "drie"} },
		/* ... and so on */
	};
	return 0;
}