Complex sentence: The European Tenpin Bowling Federation (ETBF) is a very influentially prominent Ten-pin bowling organisation that hosts the worldwide prestigious European Bowling Tour (EBT), similar to that of the tour held by the Professional Bowlers Association (PBA).
Split into simpler sentences: The European Tenpin Bowling Federation (ETBF) is a very influentially prominent Ten-pin bowling organisation that hosts the worldwide prestigious European Bowling Tour (EBT). Similar to that of the tour held by the Professional Bowlers Association (PBA).