id	keyword
hungeobull-2575	valley
hungeobull-2575	mars
hungeobull-2575	crater
hungeobull-2575	area
hungeobull-2575	tinto
hungeobull-2575	figure
hungeobull-2575	shows
hungeobull-2575	erosion
hungeobull-2575	drainage
hungeobull-2575	inset
hungeobull-2575	tributary
hungeobull-2575	water
hungeobull-2575	flow