{"id":"S2001002948","label":"Proto-planetary nebulae","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2001002948","normalized_label":"proto-planetary nebulae","broader":["http://id.loc.gov/authorities/subjects/sh85102649"],"aliases":["PPNe (Astrophysics)","Post-AGB objects (Astrophysics)","Post-asymptotic giant branch objects (Astrophysics)","Protoplanetary nebulae"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2001002948","provider":"lcsh","revision":"ab8c8996dde7d1ca","taxonomy_revision":"f050b5d4780b1289","title":"Proto-planetary nebulae","url":"/topics/S2001002948","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"3378002012546630","address_version":"morton4x16-v1","coordinates":[0,477,4999,4096],"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}