void wordChain(string file, string startWord) {
	map<string, string> first2Letters;
	vector<string> dictionary;
	string word;
	ifstream inputFile(file);
	if (inputFile) {
		while (inputFile >> word) {
			string firstTwo = word.substr(0, 2);
			first2Letters.insert(pair<string, string> {firstTwo, word});
			dictionary.push_back(word);
		}
	}
	inputFile.close();
	cout << startWord << endl;	
	for (auto w : dictionary) {
		string lastTwo = startWord.substr(startWord.length() - 2);
		map<string, string>::iterator iter;
		iter = first2Letters.find(lastTwo);
		if (iter != first2Letters.end()) {
			string toRemove = startWord;
			dictionary.erase(remove(dictionary.begin(), dictionary.end(), toRemove), dictionary.end());
			startWord = first2Letters[lastTwo];
			cout << startWord << endl;
		}
	}
}