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Start with the full category, then apply the exact boundary: The four signatories of the 1991 Treaty of Asunción. Use the country, not a later accession or an associate member. You only need one qualifying answer. A longer name is not automatically rarer.
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Shortest accepted input at 65+ points
UruguayUruguay · 75 points · 7 characters
Uruguay is one of the four original states named in the Treaty of Asunción.
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Paraguay85 points · Shortest accepted spelling: Paraguay
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- Apply the complete question boundary: The four signatories of the 1991 Treaty of Asunción. Use the country, not a later accession or an associate member.
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Why these answers qualify
Each entry belongs to the bounded set defined by the prompt. The named source supports the underlying facts; our editorial scoring is a separate layer.
Source: MERCOSUR · Countries ↗
Reference version: 2026-10-21. See our answer policy for how we handle aliases and omissions.