<prompt> Qedela umusho olandelayo: Uphawu lwendabuko lweNdlu yaseLancaster yiRed Rose yaseLancaster, efana naleyo yeNdlu yaseYork ene-rose emhlophe. La magama athathwe ezifanekisweni zeRoyal Duchies yaseLancaster naseYork ngekhulu le-15. Lokhu kwaholela empini yombango ngenxa yokufuna isihlalo sobukhosi phakathi nenkathi yokubusa kuka -  <response>: Impi YamaRose. 