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  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "title": "Second Foundation",
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  "description": "The third novel in Isaac Asimov’s classic science-fiction masterpiece, the Foundation series THE EPIC SAGA THAT INSPIRED THE APPLE TV+ SERIES FOUNDATION The Foundation lies in ruins—destroyed...",
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      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/isaac-asimov/en/second-foundation/9780553382594",
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    {
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    {
      "title": "L’altra faccia della spirale",
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    {
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      "url": "https://www.kolczanksiazek.pl/isaac-asimov/pt/segunda-fundacao"
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    {
      "title": "Друга Фундація",
      "language": "uk_UA",
      "url": "https://www.kolczanksiazek.pl/aizek-azimov/uk/druha-fundatsiia"
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