sentences:  His activities with this group led to his imprisonment in Butyrka prison, where he wrote the Russian text of the Polish revolutionary song "Warszawianka" and the Ukrainian song "Rage, Tyrants".In 1904-5 he was involved in organising the 3rd Congress of the Russian Social Democratic Labor Party.In 1910 he oversaw the construction of a power station near Moscow and proposed the idea of a hydroelectric plant in Saratov.