Complex sentence: In 2003, CNBC reported from One Cleveland Center about an investment banker named Frank Grudittaria, Grudittaria worked for Lehman Brothers at their Cleveland Offices, which are based at One Cleveland Center.
Split into simpler sentences: In 2003, CNBC reported from One Cleveland Center about an investment banker named Frank Gruttadauria. Gruttadauria worked for Lehman Brothers at their Cleveland Offices, which are based at One Cleveland Center.