{"id":"S85110723","label":"Radioisotopes in astronautics","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85110723","normalized_label":"radioisotopes in astronautics","broader":["http://id.loc.gov/authorities/subjects/sh85008944","http://id.loc.gov/authorities/subjects/sh85008947","http://id.loc.gov/authorities/subjects/sh85110715"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85110723","provider":"lcsh","revision":"46fd8047a9d94e4b","taxonomy_revision":"f050b5d4780b1289","title":"Radioisotopes in astronautics","url":"/topics/S85110723","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288450554433521220","address_version":"morton4x16-v1","coordinates":[0,20,19135,3072],"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}