<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.aprili 2 mwaka 2015, katika mji wa lausanne, uswisi, makubaliano ya kisiasa yakifikiwa kati ya tehran na mataifa yenye nguvu duniani kuhusu suala la mpango wa nyuklia wa iran.  <response>: on the evening of 02042015 in lausanne, switzerland the framework agreement between the p51 countries and iran was signed over its nuclear program. 