{"id":"S85022941","label":"Chemical plants--Piping","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85022941","normalized_label":"chemical plants--piping","broader":["http://id.loc.gov/authorities/subjects/sh92000593"],"aliases":["Chemical plants--Pipe lines"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85022941","provider":"lcsh","revision":"cea77e89bfb22a68","taxonomy_revision":"f050b5d4780b1289","title":"Chemical plants--Piping","url":"/topics/S85022941","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"902984936678621764","address_version":"morton4x16-v1","coordinates":[0,20,17763,29696],"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}