The Eaton Centre in Toronto commissioned Michael Snow, an artist, to create a work of art for the Centre. Snow's sculpture of a great flight of Canada geese is now a tourist attraction. At one point, the Eaton Centre placed red bows on the neck of each goose as part of its Christmas promotion and added a bow to the neck of the goose in its trade mark logo. Michael Snow sued to have them remove the bows from his sculpture. Under what provision of what Act could he do so, since he had been paid for his work and had assigned his rights in it to the Eaton Centre? Can the rights be assigned