Piauí is a federative unit of Brazil.
Boundaries: Instituto Brasileiro de Geografia e Estatística (IBGE), OCHA ROLAC (https://data.humdata.org/dataset/brazil-administrative-level-0-boundaries) via geoBoundaries, CC BY 3.0 IGO (https://creativecommons.org/licenses/by/3.0/igo/); boundaries modified; Natural Earth (naturalearthdata.com), public domain
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We show Teresina as the capital of Piauí. If that is wrong, tell us what it should be and where you read it.
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