In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

[EX Q]: Under this Convention , any toxic chemical , regardless of its origin , is considered a chemical weapon unless it is used for purposes that are not prohibited ( an important legal definition known as the General Purpose Criterion ) .
[EX A]: The Convention also says that any toxic chemical is a chemical weapon unless it is used for legal reasons .

[EX Q]: Crowsnest Pass ( sometimes referred to as Crow 's Nest Pass , ) is a low mountain pass across the Continental Divide of the Canadian Rockies on the Alberta – British Columbia border .
[EX A]: Crowsnest Pass is a mountain pass in the Canadian Rockies between Alberta and British Columbia .

[EX Q]: Its pattern of two-tier metropolitan and non-metropolitan county and district councils remains in use today in large parts of England , although the metropolitan county councils were abolished in 1986 , and both county and district councils were replaced with unitary authorities in many areas in the 1990s .
[EX A]:
Its pattern of two-tier councils remains in use today in large parts of England , although the metropolitan county councils were abolished in 1986 and it was replaced with unitary authorities in many areas in the 1990s .