Complex sentence: "Unwritten" stayed in the Hot 100 for 38 weeks, thirteen of those inside the top ten, estimated sales in the United States for "Unwritten" are 2,731,000 as of June 2011.
Split into simpler sentences: Unwritten stayed in the Hot 100 for 38 weeks, thirteen of those inside the top ten. Estimated sales in the United States for "Unwritten" are 2,731,000 as of June 2011.