{"id":"S94002249","label":"Heterostructures","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh94002249","normalized_label":"heterostructures","broader":["http://id.loc.gov/authorities/subjects/sh85034503","http://id.loc.gov/authorities/subjects/sh85130616"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh94002249","provider":"lcsh","revision":"f2e8ccb3bd1ffbe8","taxonomy_revision":"f050b5d4780b1289","title":"Heterostructures","url":"/topics/S94002249","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"342352753768923684","address_version":"morton4x16-v1","coordinates":[0,22,26993,9216],"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}