uKgalema Motlanthe waba ngumongameli waseNingizimu Afrika isikhathi esingakanani?
['phakathi kuka-25 Septhemba 2008 no-9 Meyi 2009']
How long was Kgalema Motlanthe the president of South Africa?
['between 25 September 2008 and 9 May 2009']