{"id":"S85104654","label":"Polymer-impregnated concrete","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85104654","normalized_label":"polymer-impregnated concrete","broader":["http://id.loc.gov/authorities/subjects/sh85030647"],"aliases":["Concrete, Polymer","Concrete, Polymer-impregnated","Polymer concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85104654","provider":"lcsh","revision":"5f433809c48eda04","taxonomy_revision":"f050b5d4780b1289","title":"Polymer-impregnated concrete","url":"/topics/S85104654","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326722354166235648","address_version":"morton4x16-v1","coordinates":[0,20,19040,14336],"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}