Complex sentence: Cardinal Turkson delivered the plenary address of the 2011 Catholic Social Ministry Gathering in Washington D.C. on the theme of "Protecting Human Life and Dignity: Promoting a Just Economy," is sponsored by 19 Catholic organizations, including the U.S. Catholic bishops.
Split into simpler sentences: Cardinal Turkson delivered the plenary address of the 2011 Catholic Social Ministry Gathering. The gathering, in Washington D.C. on the theme of "Protecting Human Life and Dignity: Promoting a Just Economy," is sponsored by 19 Catholic organizations, including the U.S. Catholic bishops.