{"id":"S2004006960","label":"Airbreathing launch vehicles","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2004006960","normalized_label":"airbreathing launch vehicles","broader":["http://id.loc.gov/authorities/subjects/sh85075056"],"aliases":["Air-breathing launch vehicles"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2004006960","provider":"lcsh","revision":"c3f42980aeaf2a3f","taxonomy_revision":"f050b5d4780b1289","title":"Airbreathing launch vehicles","url":"/topics/S2004006960","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14699819837664928258","address_version":"morton4x16-v1","coordinates":[0,477,51936,49152],"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}