Complex sentence: Over time J.K. made contributions of Eli and Lilly Company stock worth a total of $86.8 million, including a $30 million bequest following his death in 1948; his two sons contributed stock with a combined value of $6.8 million.
Split into simpler sentences: Over time J.K. made contributions of Eli and Lilly Company stock worth a total of $86.8 million, including a $30 million bequest following his death in 1948. His sons, Eli and Joe, contributed stock with a combined value of $6.8 million.