PMC:1584416 / 4764-4768 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1077","span":{"begin":0,"end":4},"obj":"JJ"}],"text":"null"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T539","span":{"begin":0,"end":4},"obj":"SO_EXT:sequence_nullness"}],"text":"null"}