id	keyword
absel-538	students
absel-538	learning
absel-538	business
absel-538	tour
absel-538	study
absel-538	kong
absel-538	hong
absel-538	supply
absel-538	river
absel-538	china
absel-538	delta
absel-538	chain
absel-538	simulation
absel-538	university
absel-538	experience
absel-538	shanghai
absel-538	activities