{"id":"S85127668","label":"Steam-boilers, Water-tube","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85127668","normalized_label":"steam-boilers, water-tube","broader":[],"aliases":["Water-tube boilers"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85127668","provider":"lcsh","revision":"b161e76d1fffe8da","taxonomy_revision":"f050b5d4780b1289","title":"Steam-boilers, Water-tube","url":"/topics/S85127668","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10090385627066533444","address_version":"morton4x16-v1","coordinates":[0,20,19399,53248],"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}