Complex sentence: In addition, Racine is the home of S.C. Johnson & Son, formerly Johnson's Wax, whose headquarters was designed in 1936 by Frank Lloyd Wright, who also designed the Wingspread Conference Center and several homes and other buildings in Racine.
Split into simpler sentences: In addition, Racine is the home of S.C. Johnson & Son, whose headquarters was designed in 1936 by Frank Lloyd Wright. Wright also designed the Wingspread Conference Center and several homes and other buildings in Racine.