id	keyword
gc-100	et al
gc-100	adriatic
gc-100	island
gc-100	brusnik
gc-100	sea
gc-100	sediments
gc-100	conglomerates
gc-100	pleistocene
gc-100	limestones
gc-100	fig
gc-100	central
gc-100	marine
gc-100	rocks
gc-100	level