original: the larger islands have some fertile valleys and plains .
simplifications: 1 . the larger islands have some rich and nutritious soil in its valleys and plains . the larger islands have some fertile valleys and plains . the larger islands have some fertile valleys and plains . the larger islands have some fertile valleys and plains . the larger islands have some fertile valleys and plains . the larger islands have some fertile valleys and plains . the larger islands -lrb- pieces of land surrounded by water -rrb- have some high-yielding valleys -lrb- a low area of land between hills or mountains -rrb- and plains -lrb- a large open flat area with in the country covered with grass -rrb- . the larger islands have some green valleys and plains .