{"id":"S85030668","label":"Concrete--Expansion and contraction","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85030668","normalized_label":"concrete--expansion and contraction","broader":["http://id.loc.gov/authorities/subjects/sh85030695"],"aliases":["Concrete--Contraction","Concrete--Shrinkage","Contraction of concrete","Expansion of concrete","Shrinkage of concrete"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85030668","provider":"lcsh","revision":"cefcbcf62a9b22ae","taxonomy_revision":"f050b5d4780b1289","title":"Concrete--Expansion and contraction","url":"/topics/S85030668","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326515389352003072","address_version":"morton4x16-v1","coordinates":[0,20,17884,12288],"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}