import { ReadonlyDataset } from "@opennetwork/rdf-dataset";
import { Literal, Quad } from "@opennetwork/rdf-data-model";
export declare const answerPredicate: import("@opennetwork/rdf-data-model").NamedNode<"https://example.com/answer">;
export declare const questionPredicate: import("@opennetwork/rdf-data-model").NamedNode<"https://example.com/question">;
export declare const startSubject: import("@opennetwork/rdf-data-model").NamedNode<"https://example.com/start">;
export interface QuestionQuad extends Quad {
    predicate: typeof questionPredicate;
    object: typeof answerPredicate;
}
export declare function isQuestionQuad(quad: Quad): quad is QuestionQuad;
export interface AnswerQuad extends Quad {
    predicate: typeof answerPredicate;
    object: Literal;
}
export declare function isAnswerQuad(quad: Quad): quad is AnswerQuad;
export declare function start(this: ReadonlyDataset<AnswerQuad>): AsyncIterable<ReadonlyDataset>;