PMC:523229 / 6452-6456 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1838","span":{"begin":0,"end":4},"obj":"JJ"}],"text":"Null"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T1001","span":{"begin":0,"end":4},"obj":"SO_EXT:sequence_nullness"}],"text":"Null"}