PMC:1914394 / 12129-12137 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T7021","span":{"begin":0,"end":5},"obj":"VB"},{"id":"T7025","span":{"begin":6,"end":8},"obj":"IN"}],"relations":[{"id":"R1647","pred":"prep","subj":"T7025","obj":"T7021"}],"text":"refer to"}