{"id":"S2020000297","label":"Two-dimensional materials","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2020000297","normalized_label":"two-dimensional materials","broader":["http://id.loc.gov/authorities/subjects/sh93000864"],"aliases":["2D materials","2DLMs (Two-dimensional layered materials)","Two-dimensional layered materials"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2020000297","provider":"lcsh","revision":"813cdb56ac07c7d6","taxonomy_revision":"f050b5d4780b1289","title":"Two-dimensional materials","url":"/topics/S2020000297","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"13872292218265419778","address_version":"morton4x16-v1","coordinates":[0,481,39688,41984],"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}