PMC:1540739 / 8037-8039 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T5020","span":{"begin":0,"end":1},"obj":"CD"},{"id":"T5022","span":{"begin":1,"end":2},"obj":"SYM"}],"relations":[{"id":"R1442","pred":"punct","subj":"T5022","obj":"T5020"}],"text":"3′"}