private String tellLoca(String lineName) {
	String direct = "{";
	switch (lineName) {
		case "line one" : 
			direct = direct + "turn left from canteen main entrance, and use the farrest stairs to go up";
			break;
		case "line two" :
			direct = direct + "turn left from canteen main entrance, and use the nearer stairs to go up";
			break;
		case "line three":
		case "line four" :
			direct = direct + "turn right from main entrance, use the stairs on left hand side and go up";
			break;
		case "line five" :
		    direct = direct + "turn right from main entrance, use the stairs on right hand side and go up"	;
		    break;
		case "line six" :
			direct = direct + "use the entrance on right hand side from main entrance, and use the stairs there to go up";
			break;
		case "schnitzelbar" :
			direct = direct + "there's another entrance with turnstile, use the stairs before turnstile to go up,";
			direct = direct + "then enter the bigger dinning hall, schnitzel bar is on your right hand side";
			break;
		case "cafeteria" :
			direct = direct + "turn right from main entrance, go and pass by the two stairs and reach another door, ";
			direct = direct + "after enter the door and ten steps more, then is cafeteria";
			break;
		case "curry queen" :
			direct = direct + "turn left from main entrance, there is a long confusing abrupt slope to curry queen,";
			direct = direct + "moreover , the slope turned a corner";
			break;
			default: 
				direct = direct + " ";
	}

	direct = direct + "}";
	return direct;
}