Complex sentence: The first 14 were promised during the 2006 State Election, and the order was placed in December the same year, and the order for the next eight was announced on 12 October 2007.
Split into simpler sentences: The first 14 were promised during the 2006 State Election, and the order was placed in December the same year. The order for the next eight was announced on 12 October 2007.