{"id":"S85027138","label":"Closed ecological systems (Space environment)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85027138","normalized_label":"closed ecological systems (space environment)","broader":["http://id.loc.gov/authorities/subjects/sh85076850"],"aliases":["Closed cycle ecological systems (Space environment)","Controlled ecological life support systems (Space environment)","Ecological life support systems, Controlled (Space environment)","Ecological systems, Closed (Space environment)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85027138","provider":"lcsh","revision":"7318e89a06f98077","taxonomy_revision":"f050b5d4780b1289","title":"Closed ecological systems (Space environment)","url":"/topics/S85027138","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"288375529944516100","address_version":"morton4x16-v1","coordinates":[0,20,17829,2048],"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}