{"id":"S2021006793","label":"Pedestrian inertial navigation systems","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2021006793","normalized_label":"pedestrian inertial navigation systems","broader":["http://id.loc.gov/authorities/subjects/sh2006005542","http://id.loc.gov/authorities/subjects/sh85065991","http://id.loc.gov/authorities/subjects/sh85080326"],"aliases":["Inertial pedestrian navigation systems","Pedestrian dead reckoning systems","Pedestrian navigation systems, Inertial"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2021006793","provider":"lcsh","revision":"638328388c4ae744","taxonomy_revision":"f050b5d4780b1289","title":"Pedestrian inertial navigation systems","url":"/topics/S2021006793","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4937150265576129606","address_version":"morton4x16-v1","coordinates":[0,481,55415,9216],"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}