I want to know the answer to the following question:
What has the Cotton-4 been in regards to the US cotton subsidies?
All the background I'm provided with is that "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.". Is that enough to answer the question?
Answer: yes