{"id":"S85101392","label":"Photon-photon interactions","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85101392","normalized_label":"photon-photon interactions","broader":["http://id.loc.gov/authorities/subjects/sh85028443","http://id.loc.gov/authorities/subjects/sh85101401"],"aliases":["Gamma-gamma interactions","Interactions, Gamma-gamma","Interactions, Photon-photon","Photon-photon collisions"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85101392","provider":"lcsh","revision":"673a8f1413efe587","taxonomy_revision":"f050b5d4780b1289","title":"Photon-photon interactions","url":"/topics/S85101392","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"864761772081563140","address_version":"morton4x16-v1","coordinates":[0,20,18989,16384],"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}