One student suggested that if people saw trash on the road, they should throw it away.
(people; saw; trash; L:on the road) (One student; suggested; that if people saw trash on the road, they should throw it away) Context(One student suggested,List([0, 21))):(they; should throw away; it)
One student suggested,List([0, 21))
people One student they
saw suggested should throw away
trash L:on the road
that if people saw trash on the road, they should throw it away
it