Given the task definition and input, reply with output. In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: White Brazilians descended from the original Portuguese settlers. From the 1870s onwards this ethnic group also included other European immigrants: mainly Italians, Spaniards and Germans. Although whites could be found throughout the country, they were the majority group in the southern region and in São Paulo province. Whites also comprised a significant proportion (40%) of the population in the northeastern provinces of Ceará, Paraíba and Rio Grande do Norte. Black Brazilians of Sub-Saharan African ancestry inhabited the same areas as mulattoes. The majority of the population of Rio de Janeiro, Minas Gerais, Espírito Santo, Bahia, Sergipe, Alagoas and Pernambuco provinces (the last four having the smallest percentages of whites in the whole country—less than 30% in each) were black or brown. The Indians, the indigenous peoples of Brazil, were found mainly in Piauí, Maranhão, Pará and Amazonas.Because of the existence of distinct racial and cultural communities, 19th century Brazil developed as a multi-ethnic nation. However the data is problematic as no reliable information is available for the years prior to 1872. The first official national census was compiled by the government in 1872 showing that out of 9,930,479 inhabitants there were 38.1% whites, 38.3% browns, 19.7% blacks and 3.9% Indians. The second official national census in 1890 revealed that in a population of 14,333,915, 44% were whites, 32.4% browns, 14.6% blacks and 9% Indians.
Who was the majority group in Sao Paulo province?