{"id":"S2002004448","label":"Aperiodic tilings","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2002004448","normalized_label":"aperiodic tilings","broader":["http://id.loc.gov/authorities/subjects/sh2002004432","http://id.loc.gov/authorities/subjects/sh85057517","http://id.loc.gov/authorities/subjects/sh85135362"],"aliases":["Aperiodic point sets","Sets, Aperiodic point"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2002004448","provider":"lcsh","revision":"6cfe61917118f1a0","taxonomy_revision":"f050b5d4780b1289","title":"Aperiodic tilings","url":"/topics/S2002004448","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9512728323151767110","address_version":"morton4x16-v1","coordinates":[0,477,20647,32768],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}