 Complete the following phrase:  After 1989 a set of new internet domains was created in Europe, including .pl Poland, .cs Czechoslovakia, .yu Yugoslavia and .dd East Germany. Among them, there was also a domain for the USSR  .su. Initially, before two-letter ccTLDs became standard, the Soviet Union was to receive a .ussr domain. The .su domain was proposed by the 19-year-old Finnish student Petri Ojala. On 26 December 1991 the country 