<prompt> unaweza kugeuza matini haya ya swahilikwa kiingereza?9-11, bunge la ulaya la light rail world, ambalo litafanyika kama sehemu ya kongamano la metrorail, litafanyika jijini madrid, uhispania kuanzia aprili.  <response>: the light rail system world europe congress, which will be held as part of the metrorail congress, will be held in madrid, spain, between 9-11 april. 