PMC:1140370 / 921-923 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T318","span":{"begin":0,"end":1},"obj":"CD"},{"id":"T320","span":{"begin":1,"end":2},"obj":"SYM"}],"relations":[{"id":"R94","pred":"punct","subj":"T320","obj":"T318"}],"text":"3′"}