In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

description in a multiprocessor system executing a single set of instructions -lrb- simd -rrb- , data parallelism is achieved when each processor performs the same task on different pieces of distributed data.
description for the execution of a single set of instructions -lrb- simd -rrb- in a multiprocessor system says , that data parallelism is achieved , when each processor performs the same task on different parts of distributed data.

the film is mainly based on robert drewe 's book our sunshine.
the film 's idea came mainly from robert drewe 's book our sunshine.

the administration of the port is carried out by the karachi port trust which was established in the nineteenth century.
the karachi port trust administers the port.