{"id":"S88001988","label":"Groups (Stratigraphy)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh88001988","normalized_label":"groups (stratigraphy)","broader":["http://id.loc.gov/authorities/subjects/sh85054086"],"aliases":["Groups (Geology)","Groups of formations (Stratigraphy)","Megagroups (Stratigraphy)","Stratigraphic groups","Supergroups (Stratigraphy)"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh88001988","provider":"lcsh","revision":"4d110e58f80fb62e","taxonomy_revision":"f050b5d4780b1289","title":"Groups (Stratigraphy)","url":"/topics/S88001988","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"4921379153615652420","address_version":"morton4x16-v1","coordinates":[0,20,64311,4096],"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}