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Matches the Portuguese word 'paragrafo' (with optional plural 's') or its abbreviations 'par', 'pars', or 'par.', optionally preceded by a non-word character or line start, followed by whitespace and a number. Commonly used to find paragraph references (e.g., 'paragrafo 5', 'par. 3') in legal or legislative texts. The global and multiline flags allow scanning every line of a document, capturing both the term and the paragraph number separately.