{"id":"S85112495","label":"Relativistic rocket mechanics","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85112495","normalized_label":"relativistic rocket mechanics","broader":["http://id.loc.gov/authorities/subjects/sh85008947","http://id.loc.gov/authorities/subjects/sh85112493","http://id.loc.gov/authorities/subjects/sh85112497","http://id.loc.gov/authorities/subjects/sh85114720","http://id.loc.gov/authorities/subjects/sh85125923"],"aliases":["Relativistic rockets"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85112495","provider":"lcsh","revision":"e16fcf9ce89d4ad5","taxonomy_revision":"f050b5d4780b1289","title":"Relativistic rocket mechanics","url":"/topics/S85112495","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9550103188183859776","address_version":"morton4x16-v1","coordinates":[0,20,19162,48128],"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}