id	keyword
ajst-22367	welfare
ajst-22367	china
ajst-22367	performance
ajst-22367	low
ajst-22367	ewp
ajst-22367	stage
ajst-22367	cities
ajst-22367	development
ajst-22367	markov
ajst-22367	urban
ajst-22367	level
ajst-22367	network