Complex sentence: The season was memorable on December 2 when Allen Iverson returned to Philadelphia, but his second stint with the Sixers was short lived when he left the team in February to attend to his 4-year-old daughter Messiah's health issues.
Split into simpler sentences: The season was memorable on December 2 when Allen Iverson returned to the team for his second stint with the Sixers. However, it was short lived as he left the team in February to attend to his 4-year-old daughter Messiah's health issues.