Context: While Brazil was fighting the US through the WTO's Dispute Settlement Mechanism against a heavily subsidized cotton industry, a group of four least-developed African countries – Benin, Burkina Faso, Chad, and Mali – also known as "Cotton-4" have been the leading protagonist for the reduction of US cotton subsidies through negotiations. The four introduced a "Sectoral Initiative in Favour of Cotton", presented by Burkina Faso's President Blaise Compaoré during the Trade Negotiations Committee on 10 June 2003.

Question: What was Brazil's argument against the US cotton industry?
Answer: heavily subsidized

Question: What are the African countries of Benin, Burkina Faso, Chad, and Mali referred to as in the cotton industry?
Answer: Cotton-4

Question: What has the Cotton-4 been in regards to the US cotton subsidies?
Answer: leading protagonist

Question: What could the US do that would please the foreign cotton industry concerning cotton subsidies?
Answer: reduction

Question: What organization has Brazil tried to use to curb US cotton subsidies?
Answer: WTO's Dispute Settlement Mechanism

Question: What was Brazil's argument against Chad's cotton industry?
Answer: Unanswerable

Question: What has the Cotton-4 been in regards to the cotton industry?
Answer: Unanswerable

Question: What could the US do that would please the WTO concerning cotton subsidies?
Answer: Unanswerable

Question: What organization has the US tried to use to curb Brazilian subsidies?
Answer: Unanswerable

Question: When were cotton subsidies introduced?
Answer: Unanswerable