instruction:
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.
question:
they were built mainly by nations like germany during world war ii to protect important industries from aerial bombardment.
answer:
they were built mainly by countries like germany during world war ii to protect important industries from attack by planes.


question:
in 2001 , he was enshrined in the college football hall of fame.
answer:
in 2001 , he was preserved in the college football hall of fame.


question:
on 20 february 2007 , encyclopædia britannica , inc. announced that it was working with mobile phone search company askmenow to launch a mobile encyclopedia.
answer:

on 20 february 2007 , encyclopædia britannica , inc. launched a mobile encyclopedia with mobile phone search company askmenow.