Complex sentence: The top VUW team was ranked fifth at this tournament, and the VUW Debating Society is the only New Zealand Debating Society to have won the tournament, which it has done three times, in 1980,1982, and 1998.
Split into simpler sentences: The top VUW team was ranked fifth at this tournament. The VUW Debating Society is the only New Zealand Debating Society to have won the tournament, which it has done three times, in 1980,1982, and 1998.