{"id":"S85053233","label":"Natural gas pipelines--Cathodic protection","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85053233","normalized_label":"natural gas pipelines--cathodic protection","broader":["http://id.loc.gov/authorities/subjects/sh85021038"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85053233","provider":"lcsh","revision":"f38715953076ce6a","taxonomy_revision":"f050b5d4780b1289","title":"Natural gas pipelines--Cathodic protection","url":"/topics/S85053233","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10088076651511825920","address_version":"morton4x16-v1","coordinates":[0,20,18236,50176],"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}