TASK DEFINITION: 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.
PROBLEM: in 2006 , phil downing left the band , citing communication problems with other members.

SOLUTION: phil downing left the band in 2006 because he had difficulties talking to the other people in the band.

PROBLEM: they were built mainly by nations like germany during world war ii to protect important industries from aerial bombardment.

SOLUTION: they were built mainly by countries like germany during world war ii to protect important industries from attack by planes.

PROBLEM: it drifted westward , and the next day it organized into a subtropical depression.

SOLUTION:
1 . it drifted westward , and the next day grew into a subtropical depression.