id	keyword
fumecheng-12598	waste
fumecheng-12598	collection
fumecheng-12598	smart
fumecheng-12598	waste collection
fumecheng-12598	vehicle
fumecheng-12598	container
fumecheng-12598	cvrp
fumecheng-12598	management
fumecheng-12598	transport
fumecheng-12598	model
fumecheng-12598	problem
fumecheng-12598	system