id	keyword
easat-8558	trade
easat-8558	cultural
easat-8558	chinese
easat-8558	countries
easat-8558	distance
easat-8558	medicine
easat-8558	culture
easat-8558	china
easat-8558	volume
easat-8558	differences
easat-8558	income
easat-8558	products
easat-8558	research