{"id":"S2019102719","label":"Triangulation stations","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2019102719","normalized_label":"triangulation stations","broader":["http://id.loc.gov/authorities/subjects/sh85053984","http://id.loc.gov/authorities/subjects/sh85130857"],"aliases":["Pillars, Triangulation","Points, Trigonometrical","Stations, Triangulation","Stations, Trigonometrical","Triangulation pillars","Trigonometrical points","Trigonometrical stations"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2019102719","provider":"lcsh","revision":"7191e857aea85c1c","taxonomy_revision":"f050b5d4780b1289","title":"Triangulation stations","url":"/topics/S2019102719","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10144512101446861894","address_version":"morton4x16-v1","coordinates":[0,481,25663,64512],"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}