Complex sentence: Jean-Pierre Louyebo is a Congolese diplomat and is the current Ambassador Extraordinary and Plenipotentiary of the Republic of the Congo to the Russian Federation, presenting his Letter of Credence to then-President of Russia Boris Yeltsin on 31 August 1999.
Split into simpler sentences: Jean-Pierre Louyebo is a Congolese diplomat and is the current Ambassador Extraordinary and Plenipotentiary of the Republic of the Congo to the Russian Federation. He presented his Letter of Credence to Russian President Boris Yeltsin on 31 August 1999.