Gravity also causes plates to slide downhill away from ocean ridges.
(Gravity; causes; plates to slide downhill away from ocean ridges) Context(Gravity causes,List([0, 19))):(plates; to slide; downhill away from ocean ridges)
Gravity causes,List([0, 19))
Gravity plates
causes to slide
plates to slide downhill away from ocean ridges
downhill away from ocean ridges