Complex sentence: At a UDPS congress in April 2009, delegates unanimously affirmed that the party would participate in the 2011 election and that Tshisekedi would be its presidential candidate; he officially announced his candidacy on December 12,2010 at a congress of his party in Kinshasa.
Split into simpler sentences: At a UDPS congress in April 2009, delegates unanimously affirmed that the party would participate in the 2011 election and that Tshisekedi would be its presidential candidate. He officially announced his candidacy on December 12,2010 at a congress of his party in Kinshasa.