Complex sentence: In 2006, North Omaha became the focus of national attention after local State Senator Ernie Chambers introduced an amendment to divide the Omaha school system into three systems that some observers suggested would have created "de facto" segregated school systems based on residential patterns.
Split into simpler sentences: In 2006, North Omaha became the focus of national attention after its State Senator Ernie Chambers introduced an amendment to divide the Omaha school system into three systems. Some observers are concerned that this would establish "de facto" segregated school systems based on residential patterns.