PMC:116589 / 825-836 JSONTXT

{"project":"craft-sa-dev","denotations":[{"id":"T295","span":{"begin":6,"end":10},"obj":"VBN"},{"id":"T299","span":{"begin":1,"end":5},"obj":"VBP"}],"relations":[{"id":"R133","pred":"aux","subj":"T299","obj":"T295"}],"text":" have used "}