{"id":"S2007003187","label":"Polymer asphalt","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2007003187","normalized_label":"polymer asphalt","broader":["http://id.loc.gov/authorities/subjects/sh85008709"],"aliases":["PMA (Asphalt emulsion mixture)","Polymer-modified asphalt","Polymerized asphalt"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2007003187","provider":"lcsh","revision":"ef18837ad7347912","taxonomy_revision":"f050b5d4780b1289","title":"Polymer asphalt","url":"/topics/S2007003187","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14411668368648184352","address_version":"morton4x16-v1","coordinates":[0,478,33216,52224],"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}