id	keyword
gs-2763	corn
gs-2763	cob
gs-2763	production
gs-2763	food
gs-2763	purple
gs-2763	georgian
gs-2763	volume
gs-2763	cobs
gs-2763	zea
gs-2763	journal
gs-2763	mays
gs-2763	corn cob
gs-2763	international
gs-2763	extract
gs-2763	acid
gs-2763	corncob
gs-2763	technology