Complex sentence: In her last years, Davies was involved with charity work: in 1952 she donated $1.9 million to establish a children's clinic at UCLA, which was changed to The Mattel Children's Hospital in 1998.
Split into simpler sentences: In her last years, Davies was involved with charity work. In 1952, she donated $1.9 million to establish a children's clinic at UCLA, which was changed to The Mattel Children's Hospital in 1998.