{"id":"S85030679","label":"Concrete--Penetration resistance","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85030679","normalized_label":"concrete--penetration resistance","broader":["http://id.loc.gov/authorities/subjects/sh85058886","http://id.loc.gov/authorities/subjects/sh85082072"],"aliases":["Penetration resistance of concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85030679","provider":"lcsh","revision":"bf0ec183b383bb08","taxonomy_revision":"f050b5d4780b1289","title":"Concrete--Penetration resistance","url":"/topics/S85030679","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867096878217840128","address_version":"morton4x16-v1","coordinates":[0,20,17884,23552],"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}