Complex sentence: It is widely believed that David will lead his crew to victory in the 2008 Beijing Olympics before returning to an undisclosed location in the hope of achieving his crowning glory: a cure for everything from the common cold to Ebola.
Split into simpler sentences: It is widely believed that David will lead his crew to victory in the 2008 Beijing Olympics before returning to an undisclosed location in the hope of achieving his crown and glory. A cure for everything from the common cold to Ebola.