{"id":"S2009006345","label":"Semi-Riemannian geometry","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2009006345","normalized_label":"semi-riemannian geometry","broader":["http://id.loc.gov/authorities/subjects/sh85054146"],"aliases":["Pseudo-Riemannian geometry"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2009006345","provider":"lcsh","revision":"5d5f6d24f3b82a1f","taxonomy_revision":"f050b5d4780b1289","title":"Semi-Riemannian geometry","url":"/topics/S2009006345","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4955169062058599968","address_version":"morton4x16-v1","coordinates":[0,478,64516,9216],"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}