{"id":"S90003929","label":"Quasicrystals","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90003929","normalized_label":"quasicrystals","broader":["http://id.loc.gov/authorities/subjects/sh85030765","http://id.loc.gov/authorities/subjects/sh85034503"],"aliases":["Quasi-crystals"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90003929","provider":"lcsh","revision":"2bb86613961f22dd","taxonomy_revision":"f050b5d4780b1289","title":"Quasicrystals","url":"/topics/S90003929","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"919873435281262150","address_version":"morton4x16-v1","coordinates":[0,21,30055,25600],"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}