Complex sentence: Its alleged continued illegal use in the beef industry is depicted in the novel "My Year of Meats", by Ruth L. Ozeki.When it was discovered that DES was harmful to humans, it was moved to veterinarian use.
Split into simpler sentences: Its alleged continued illegal use in the beef industry is depicted in the novel "My Year of Meats", by Ruth L. Ozeki. When DES was discovered to be harmful to humans, it was moved to veterinarian use.