Complex sentence: Lonnie George Johnson (born October 6,1949 in Mobile, Alabama) is an American engineer best known as the inventor of the Super Soaker water gun, which was the top selling toy in the United States in 1991 and 1992.
Split into simpler sentences: Lonnie George Johnson (born October 6,1949 in Mobile, Alabama) is an American engineer. Johnson invented the Super Soaker water gun, which was the top selling toy in the United States in 1991 and 1992.