Complex sentence: The 2008 NBA Playoffs was the postseason for the National Basketball Association's 2007-08 season which ended with the Eastern Conference champion Boston Celtics defeating the Western Conference champion Los Angeles Lakers 4--2.
Split into simpler sentences: The 2008 NBA Playoffs was the postseason for the National Basketball Association's 2007-08 season. It ended with the Eastern Conference champion Boston Celtics defeating the Western Conference champion Los Angeles Lakers 4--2.