{"thcode":25,"term":{"code":5,"name":"theme","parent":2,"scope":"Terms indicate domains of human concern, such as scientific discipline, societal problems, or characteristics of earth, space, oceans, and living things."},"uf":[{"name":"subject","usewith":false},{"name":"topic","usewith":false}],"bt":[{"code":2,"name":"(subjects)","parent":1,"scope":"Distinct segments of human knowledge, such as place, time, or theme."},{"code":1,"name":"Categories","parent":null,"scope":"Characteristics applicable to entire controlled vocabularies.  We expect these terms to help people decide which vocabularies to use for particular purposes in the absence of official guidance."}],"nt":[{"code":8,"name":"biological taxonomy","parent":5,"scope":"Terms indicate groups of organisms identified by names where the rules governing the specification and use of the names are defined by well known tradition or by governing bodies such as international commissions."},{"code":22,"name":"lithology","parent":5,"scope":"Rock types; may be further divided by composition, texture, mode of formation, or physical form of the rock body."}],"rt":[]}