The Brazilian States (and respective cities) can be grouped in certain groups.

The sunny cities of Recife, Fortaleza, Salvador and all others in the Northeastern coast have similarities.
Manaus and Belem share much of their Amazonic cultures.
In the central area of the country, one could find similarities than differences, from Cuiaba to Belo Horizonte, passing by Brasilia and Goiania.
In the southern States of Parana and Santa Curitiba, the European background stands out.

Porto Alegre is different from all other Brazilian cities. Rio Grande do Sul is different from all other Brazilian States.

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Rio Grande do Sul