{"id":"S85011221","label":"Ball mills--Grinding media","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85011221","normalized_label":"ball mills--grinding media","broader":["http://id.loc.gov/authorities/subjects/sh85095417"],"aliases":["Grinding media in ball mills"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85011221","provider":"lcsh","revision":"ea59734738a82f2d","taxonomy_revision":"f050b5d4780b1289","title":"Ball mills--Grinding media","url":"/topics/S85011221","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"866956123486438912","address_version":"morton4x16-v1","coordinates":[0,20,17580,21504],"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}