Complex sentence: The Carter Center is a nongovernmental, not-for-profit organization founded in 1982 by former U.S. President Jimmy Carter and his wife Rosalynn Carter through a joint-partnership with Emory University, shortly after the former's defeat in the 1980 U.S. Presidential elections.
Split into simpler sentences: The Carter Center is a nongovernmental, not-for-profit organization founded in 1982 by former U.S. President Jimmy Carter. He and his wife Rosalynn Carter partnered with Emory University just fater his defeat in the 1980 U.S. Presidential elections.