id	keyword
cana-638	analysis
cana-638	sentiment
cana-638	feature
cana-638	document
cana-638	data
cana-638	classification
cana-638	layer
cana-638	nonlinear
cana-638	selection
cana-638	frnn
cana-638	hho
cana-638	term
cana-638	vol
cana-638	input