{"entities":{"Q40":{"pageid":134,"ns":120,"title":"Item:Q40","lastrevid":201,"modified":"2026-10-17T20:23:45Z","type":"item","id":"Q40","labels":{"en":{"language":"en","value":"MARC 21"}},"descriptions":{"en":{"language":"en","value":"protocol for encoding machine-readable bibliographic records"}},"aliases":{"en":[{"language":"en","value":"MARC21"}]},"claims":{},"sitelinks":{}}}}