{"id":"S89001500","label":"Airport construction contracts","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh89001500","normalized_label":"airport construction contracts","broader":["http://id.loc.gov/authorities/subjects/sh89001472"],"aliases":["Airports--Contracts and specifications"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh89001500","provider":"lcsh","revision":"36f8efefbea3efe3","taxonomy_revision":"f050b5d4780b1289","title":"Airport construction contracts","url":"/topics/S89001500","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"633952016301179394","address_version":"morton4x16-v1","coordinates":[0,21,14392,28672],"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}