Complex sentence: In 2008 the city employed, at a cost of $4.7 million, in-house staff of more than 50 public relations representatives across various departments in the Daley administration, and millions more on seven private public relations firms.
Split into simpler sentences: In 2008 the city employed, at a cost of $4.7 million, more than 50 public relations representatives across various departments in the Daley administration. In addition to that in-house staff, the city spent millions more on seven private public relations firms.