Complex sentence: At the end of the 1990s, General Dynamics purchased Gulfstream, and it opened a $5.5 million aircraft refurbishment and completions support facility in Savannah in 2000.
Split into simpler sentences: At the end of the 1990s, General Dynamics purchased Gulfstream. It opened a $5.5 million aircraft refurbishment and completions support facility in Savannah in 2000.