{"id":"S86007716","label":"Tracked landing vehicles","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh86007716","normalized_label":"tracked landing vehicles","broader":["http://id.loc.gov/authorities/subjects/sh85087639","http://id.loc.gov/authorities/subjects/sh85142533"],"aliases":["AMTRACs (Amphibian tractors)","Amphibian tractors","Amphibious tractors","LVTs (Amphibian tractors)","Landing vehicles, Tracked","Tractors, Amphibian"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh86007716","provider":"lcsh","revision":"73236c92aa7412e4","taxonomy_revision":"f050b5d4780b1289","title":"Tracked landing vehicles","url":"/topics/S86007716","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"13837309872347432512","address_version":"morton4x16-v1","coordinates":[0,20,33150,36864],"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}