id	keyword
crl-14350	library
crl-14350	libraries
crl-14350	chinese
crl-14350	university
crl-14350	china
crl-14350	information
crl-14350	science
crl-14350	liu
crl-14350	huang
crl-14350	state
crl-14350	books
crl-14350	workers