四子王旗sì zǐ wáng qísiziwangqiSiziwang banner or Dörvön-xüüxed khoshuu in Ulaanchab 烏蘭察布|乌兰察布[Wu1 lan2 cha2 bu4], Inner MongoliaCharacters in this word四four子son, child旗banner, flag, streamer王king, rulerStudy it in Yanamino