id	keyword
easat-9056	consumer
easat-9056	product
easat-9056	value
easat-9056	differentiation
easat-9056	item
easat-9056	behavior
easat-9056	model
easat-9056	vol
easat-9056	table
easat-9056	purchase
easat-9056	validity
easat-9056	analysis
easat-9056	author