{"id":"S85098368","label":"Particle track etching","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85098368","normalized_label":"particle track etching","broader":["http://id.loc.gov/authorities/subjects/sh85045046","http://id.loc.gov/authorities/subjects/sh85098369"],"aliases":["Track etching, Particle"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85098368","provider":"lcsh","revision":"41a25b8464949972","taxonomy_revision":"f050b5d4780b1289","title":"Particle track etching","url":"/topics/S85098368","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288300763221214784","address_version":"morton4x16-v1","coordinates":[0,20,18942,0],"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}