{"id":"S87001973","label":"Pyrophosphates","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh87001973","normalized_label":"pyrophosphates","broader":["http://id.loc.gov/authorities/subjects/sh91005155"],"aliases":["Diphosphates"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh87001973","provider":"lcsh","revision":"4c8cc60796063401","taxonomy_revision":"f050b5d4780b1289","title":"Pyrophosphates","url":"/topics/S87001973","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14432994743581558276","address_version":"morton4x16-v1","coordinates":[0,20,48685,54272],"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}