PMC:1183529 / 23492-23498 JSONTXT

{"project":"craft-ca-core-ex-dev","denotations":[{"id":"T12880","span":{"begin":2,"end":6},"obj":"SO_EXT:sequence_nullness"}],"text":"a null"}

{"project":"craft-sa-dev","denotations":[{"id":"T13412","span":{"begin":0,"end":1},"obj":"DT"},{"id":"T13414","span":{"begin":2,"end":6},"obj":"JJ"}],"text":"a null"}