{"id":"S90004657","label":"Mount Etna Iron Furnace National Historic Site (Pa.)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh90004657","normalized_label":"mount etna iron furnace national historic site (pa.)","broader":["http://id.loc.gov/authorities/subjects/sh85061136","http://id.loc.gov/authorities/subjects/sh86001663"],"aliases":["Etna Furnace (Pa.)","Mount Etna Furnace (Pa.)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh90004657","provider":"lcsh","revision":"0f851c7287b62b3e","taxonomy_revision":"f050b5d4780b1289","title":"Mount Etna Iron Furnace National Historic Site (Pa.)","url":"/topics/S90004657","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10107216675117335106","address_version":"morton4x16-v1","coordinates":[0,21,30066,50176],"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}