PMC:1584416 / 5061-5065 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1133","span":{"begin":0,"end":4},"obj":"JJ"}],"text":"null"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T550","span":{"begin":0,"end":4},"obj":"SO_EXT:sequence_nullness"}],"text":"null"}