Complex sentence: His daughter Barbara Warner ran for the Ontario NDP in the 2003 provincial election, in the riding of Scarborough Southwest, and in 2006 unsuccessfully sought the nomination as the NDP candidate to succeed Marilyn Churley in the provincial riding of Toronto-Danforth.
Split into simpler sentences: His daughter Barbara Warner ran for the Ontario NDP in the 2003 provincial election, in the riding of Scarborough Southwest. In 2006 she unsuccessfully sought the nomination as the NDP candidate to succeed Marilyn Churley in the provincial riding of Toronto-Danforth.