Original sentence: Periodic comets that Levy co-discovered include P/2006T1, 118P/Shoemaker-Levy, 129P/Shoemaker-Levy, 135P/Shoemaker-Levy, 137P/Shoemaker-Levy, 138P/Shoemaker-Levy, 145P/Shoemaker-Levy, and 181P/Shoemaker-Levy
Edited sentence: In addition, Levy is the sole discoverer of two periodic comets P/1991 L3 and P/2006T1.Periodic comets that Levy co-discovered include 118P/Shoemaker-Levy, 129P/Shoemaker-Levy, 135P/Shoemaker-Levy, 137P/Shoemaker-Levy, 138P/Shoemaker-Levy, 145P/Shoemaker-Levy, and 181P/Shoemaker-Levy