Complex sentence: NSW Premier Barry O'Farrell strongly opposes an airport being built within Sydney, favouring a high speed rail connection to Canberra Airport, however this has been described as "economically infeasible".
Split into simpler sentences: NSW Premier Barry O'Farrell strongly opposes an airport being built within Sydney, favouring a high-speed rail connection between Sydney and Canberra Airport. This proposition has been described as "economically infeasible".