PMC:4694192 / 4561-4563 JSONTXT

{"project":"TEST0","denotations":[{"id":"26597805-237-243-1693930","span":{"begin":0,"end":2},"obj":"[\"18034178\"]"}],"text":"21"}

{"project":"2_test","denotations":[{"id":"26597805-18034178-64143558","span":{"begin":0,"end":2},"obj":"18034178"}],"text":"21"}