export interface SimpleQuad {
    subject: string;
    predicate: string;
    object: string;
    graph: string;
}
export type RdfFormat = 'nquads' | 'ntriples' | 'turtle' | 'trig' | 'json' | 'jsonld';
export declare function detectFormat(filePath: string): RdfFormat;
export declare function supportedExtensions(): string[];
/**
 * Parse RDF content in any supported W3C format into simple quads.
 * For formats without named graph support (N-Triples, Turtle),
 * the defaultGraph is used.
 */
export declare function parseRdf(content: string, format: RdfFormat, defaultGraph: string): Promise<SimpleQuad[]>;
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