id	keyword
easat-5529	green
easat-5529	development
easat-5529	urban
easat-5529	technology
easat-5529	innovation
easat-5529	effect
easat-5529	china
easat-5529	central
easat-5529	threshold
easat-5529	green development
easat-5529	study
easat-5529	results