id	keyword
ajis02-216	knowledge
ajis02-216	information
ajis02-216	science
ajis02-216	data
ajis02-216	document
ajis02-216	retrieval
ajis02-216	concepts
ajis02-216	level
ajis02-216	world
ajis02-216	sign
ajis02-216	management
ajis02-216	paper