The breakthrough could have meant a fast track to a space station on the Moon, because it would save dragging water all the way up from Earth.
(The breakthrough; could have meant; a fast track; because it would save dragging water all the way up from Earth) (it; would save; dragging water all the way up from Earth) Context(it would save,List([87, 100))):(it; would save dragging; water; all the way up from Earth)
it would save,List([87, 100))
The breakthrough it it
could have meant would save would save dragging
a fast track because it would save dragging water all the way up from Earth
dragging water all the way up from Earth
water all the way up from Earth