{"id":"S2004009532","label":"Solid propellant rocket engines--Performance","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2004009532","normalized_label":"solid propellant rocket engines--performance","broader":[],"aliases":["Performance of solid propellant rocket engines"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2004009532","provider":"lcsh","revision":"f76dc89c97b92958","taxonomy_revision":"f050b5d4780b1289","title":"Solid propellant rocket engines--Performance","url":"/topics/S2004009532","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14738100450532418050","address_version":"morton4x16-v1","coordinates":[0,477,51976,61440],"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}