 Complete the following phrase:  The Vyborg Side was filled with industrial enterprises of different complexity, producing sugar, textiles, timber and later, since the 19th century, many kinds of heavy industry products. There were factories e.g. by Ericsson and the Nobel family. Working and living conditions for workmen were varied, but generally considered harsh, and illegal Socialist propaganda of various political factions successfully spread among workers in the last decades of 19 century and early decades of the 20th. There were strikes, and World War I caused both battle losses and famine in the city. Not surprisingly factory workers supported in 1917 the 