public String act(String s){
    	String[] comds = Parser.parse(s);
    	String output = "";
    	if(comds[0].equalsIgnoreCase("inv")) output = inv();
    	else if(comds[0].equalsIgnoreCase("go")) output = go();
    	else if(comds[0].equalsIgnoreCase("use")) output = use(comds[1]);
    	else if(comds[0].equalsIgnoreCase("drop")) output = drop(comds[1]);
    	else if(comds[0].equalsIgnoreCase("examine")) output = examine(comds[1]);
    	else output = "I don't understand how to " + comds[0];
    	turn++;
    	return output;
    }