PMC:1584416 / 9846-9850 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T1956","span":{"begin":0,"end":4},"obj":"JJ"}],"text":"Null"}

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T1857","span":{"begin":0,"end":4},"obj":"SO_EXT:sequence_nullness"}],"text":"Null"}