{"id":"S85101391","label":"Photon echoes","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85101391","normalized_label":"photon echoes","broader":["http://id.loc.gov/authorities/subjects/sh85027762","http://id.loc.gov/authorities/subjects/sh85038223","http://id.loc.gov/authorities/subjects/sh85101398"],"aliases":["Echoes, Photon"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85101391","provider":"lcsh","revision":"de9c3fa7af25c65d","taxonomy_revision":"f050b5d4780b1289","title":"Photon echoes","url":"/topics/S85101391","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326731150192166404","address_version":"morton4x16-v1","coordinates":[0,20,18989,15360],"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}