Ask Oracle, January 31, 2012January 31, 2012, 0 Ch’onan,Cheonan,Chkhonan,Chkhonan-si,Ch’ŏnan,Tenan,Thyen-an,Thyen-ān,cheon-an,cheon-ansi,tian an shi,Чхонан,Чхонан-си,天安市,천안,천안시