{"id":"S85056228","label":"Grain boundaries","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85056228","normalized_label":"grain boundaries","broader":[],"aliases":["Crystal grain boundaries"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85056228","provider":"lcsh","revision":"3743c47b8583b9fe","taxonomy_revision":"f050b5d4780b1289","title":"Grain boundaries","url":"/topics/S85056228","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9513858902995911236","address_version":"morton4x16-v1","coordinates":[0,20,18283,36864],"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}