{"id":"S2009000686","label":"Femtosecond lasers","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh2009000686","normalized_label":"femtosecond lasers","broader":["http://id.loc.gov/authorities/subjects/sh85074788"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh2009000686","provider":"lcsh","revision":"9eedf4dfc493eb45","taxonomy_revision":"f050b5d4780b1289","title":"Femtosecond lasers","url":"/topics/S2009000686","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"14180920735211610724","address_version":"morton4x16-v1","coordinates":[0,478,64427,47104],"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}