Complex sentence: The 2013 IRB Nations Cup is the eighth edition of the international rugby union tournament, a competition created by the International Rugby Board, has been played, and for the seventh time in a row to be held in Bucharest, Romania.
Split into simpler sentences: The 2013 IRB Nations Cup was the eighth edition of the international rugby union tournament, a competition created by the International Rugby Board. For the seventh time in a row, it was held in Bucharest, Romania.