<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.sirleaf alichaguliwa kuwa rais wa liberia januari 16, 2006 baada ya kushinda uchaguzi mkuu wa kitaifa mwaka 2005.  <response>: johnson sirleaf became president of liberia on 16 january 2006, after winning the 2005 national elections. 