This means that small waterfalls connect some hanging valleys with the main river in the canyon.
(This; means; that small waterfalls connect some hanging valleys with the main river in the canyon) Context(This means,List([0, 10))):(small waterfalls; connect; some hanging valleys with the main river in the canyon)
This means,List([0, 10))
This small waterfalls
means connect
that small waterfalls connect some hanging valleys with the main river in the canyon
some hanging valleys with the main river in the canyon