{"id":"S00005422","label":"Parabolic troughs","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh00005422","normalized_label":"parabolic troughs","broader":["http://id.loc.gov/authorities/subjects/sh85124495"],"aliases":["Parabolic trough collectors","Troughs, Parabolic"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh00005422","provider":"lcsh","revision":"0bd305154bcd5d46","taxonomy_revision":"f050b5d4780b1289","title":"Parabolic troughs","url":"/topics/S00005422","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9261793371243152384","address_version":"morton4x16-v1","coordinates":[0,0,84,47104],"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}