 Complete the following phrase:  Elements of Ukrainian nationalism occur in some of Silvestrovs works, most notably in his choral work Diptych. This work sets the strongly patriotic words of Taras Shevchenkos 1845 poem Testament Заповіт, which has a significant national status in Ukraine, and Silvestrov dedicated it in 2014 to the memory of Sergey Nigoyan, an Armenian-Ukrainian who died in the 