At first thought, one would tend to think that gravity is simply pulling these rocks downhill.
(one; would tend; to think that gravity is simply pulling these rocks downhill; T:At first thought) (one; to think; that gravity is simply pulling these rocks downhill) Context(one to think,List([18, 41))):(gravity; is simply pulling; these rocks; downhill)
one to think,List([18, 41))
one one gravity
would tend to think is simply pulling
to think that gravity is simply pulling these rocks downhill T:At first thought
that gravity is simply pulling these rocks downhill
these rocks downhill