 Complete the following phrase:  They began their own collaboration in 1991. The brothers have often made pieces with plastic models or fibreglass mannequins of people. An early piece consisted of eighty-three scenes of torture and disfigurement derivative of those recorded by Francisco Goya in his series of etchings, The Disasters of War a work they later returned to rendered into small three-dimensional plastic models. One of these was later turned into a life-size work, Great Deeds Against the Dead, shown along with Zygotic Acceleration, Biogenetic, De-Sublimated Libidinal Model Enlarged x 1000 at the 