PMC:1382200 / 9756-9761 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T6679","span":{"begin":0,"end":1},"obj":"SYM"}],"text":"- ES2"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T6480","span":{"begin":0,"end":1},"obj":"SO_EXT:sequence_nullness_or_absence"}],"text":"- ES2"}