void lesson8() {
	map <string, string> latin_dict;
	int n, count = 0;
	cin >> n;
	for (int i = 0; i < n; i++) {
		string key, value;
		cin >> key;
		getline(cin, value);
		latin_dict[key] = value;
	}
	map <string, set <string> > eng_dict;
	vector <char> translate_word;
	for (auto pair : latin_dict) {
		for (int i = 0; i < pair.second.size(); i++) {
			if (isalpha(pair.second[i])) {
				translate_word.push_back(pair.second[i]);
			}
			if (pair.second[i] == ',' || i == pair.second.size() - 1) {
				string translate(translate_word.begin(), translate_word.end());
				string translation(pair.first.begin(), pair.first.end());
				eng_dict[translate].insert(translation);
				//translate_word = "";
				translate_word.clear();
			}
		}

	}
	for (auto pair : eng_dict) {
		count++;
	}
	cout << count <<endl;
	for (auto pair : eng_dict) {
		cout << pair.first << " - ";
		for (auto word = pair.second.begin(); word != pair.second.end(); word++) {
			cout << *word;
			if (word != --pair.second.end()) {
				cout << ", ";
			}
		}
		cout << endl;
	}
}