{"id":"S2020000157","label":"Backscatter communication","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2020000157","normalized_label":"backscatter communication","broader":["http://id.loc.gov/authorities/subjects/sh2009007845"],"aliases":["Ambient backscatter communication","Backscatter modulation"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2020000157","provider":"lcsh","revision":"55dd8b6400d024bb","taxonomy_revision":"f050b5d4780b1289","title":"Backscatter communication","url":"/topics/S2020000157","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"5227632733527737410","address_version":"morton4x16-v1","coordinates":[0,481,39686,29696],"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}