{"id":"S85106451","label":"Preservation of materials","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85106451","normalized_label":"preservation of materials","broader":[],"aliases":["Collection and preservation","Materials--Preservation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85106451","provider":"lcsh","revision":"da30080c387b2470","taxonomy_revision":"f050b5d4780b1289","title":"Preservation of materials","url":"/topics/S85106451","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"864911305730311680","address_version":"morton4x16-v1","coordinates":[0,20,19068,19456],"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}