Sand and other sediment collected at the mouths of the rivers, forming deltas.
(Sand and other sediment; collected; at the mouths of the rivers) Context(Sand and other sediment collected,List([0, 33))):(Sand and other sediment; collected at the mouths of the rivers forming; deltas)
Sand and other sediment collected,List([0, 33))
Sand and other sediment Sand and other sediment
collected collected at the mouths of the rivers forming
at the mouths of the rivers
deltas