PMC:1382200 / 5849-5853 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T4085","span":{"begin":3,"end":4},"obj":"SYM"}],"text":"pn4-"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T3198","span":{"begin":3,"end":4},"obj":"SO_EXT:sequence_nullness_or_absence"}],"text":"pn4-"}