PMC:1440874 / 737-746 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T286","span":{"begin":3,"end":7},"obj":"JJ"}],"text":"os null f"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T125","span":{"begin":3,"end":7},"obj":"SO_EXT:sequence_nullness"}],"text":"os null f"}