Complex sentence: Herbert Dickens Ryman (June 28,1910--February 10,1989) was an artist and Disney Imagineer who worked in watercolor, oils, and pen & ink sketches.
Split into simpler sentences: Herbert Dickens Ryman (June 28,1910--February 10,1989) was an artist and Disney Imagineer. Ryman worked in watercolor, oils, and pen & ink sketches.