id	keyword
crl-16398	books
crl-16398	print
crl-16398	price
crl-16398	titles
crl-16398	libraries
crl-16398	university
crl-16398	library
crl-16398	press
crl-16398	cost
crl-16398	pricing
crl-16398	differentials
crl-16398	percent
crl-16398	mean