Complex sentence: In 2003 and 2007, SPAA was part of the Federated Computing Research Conference (FCRC), and in 1998,2005, and 2009, SPAA was co-located with the ACM Symposium on Principles of Distributed Computing (PODC).
Split into simpler sentences: In 2003 and 2007, SPAA was part of the Federated Computing Research Conference (FCRC). SPAA 2009 is co-located with the ACM Symposium on Principles of Distributed Computing (PODC).