 Complete the following phrase:  By the end of the 1930s the four factories of Hajnówka had 1947 workers altogether and were significantly expanded. The state ficed construction of several hundred small houses for the workers and the town grew up rapidly. Also, the town attracted many notable Polish architects of the epoch to build new buildings in modernist style. However, the progress was stopped by the Polish Defensive War of 1939 and the outbreak of World War II. In the effect of the 