Cost is the main thing , '' said Peter Harbison , an analyst at the Center for Asia Pacific Aviation in Sydney , Australia .
Australia /location/location/contains Sydney
NN VBZ DT JJ NN , '' VBD NNP NNP , DT NN IN DT NNP IN NNP NNP NNP IN NNP , NNP .
Australia
LOCATION
Sydney
LOCATION
/location/location/contains