id	keyword
crl-14456	reference
crl-14456	expert
crl-14456	system
crl-14456	information
crl-14456	library
crl-14456	user
crl-14456	knowledge
crl-14456	questions
crl-14456	expert system
crl-14456	rules
crl-14456	work
crl-14456	base
crl-14456	research
crl-14456	sources
crl-14456	libraries
crl-14456	approach
crl-14456	service
crl-14456	language
crl-14456	titles
crl-14456	prolog
crl-14456	fact
crl-14456	process
crl-14456	university
crl-14456	lisp
crl-14456	new