PMC:7205724 / 272-281 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T38","span":{"begin":1,"end":4},"obj":"DT"},{"id":"T39","span":{"begin":5,"end":8},"obj":"NN"}],"relations":[{"id":"R34","pred":"arg1Of","subj":"T39","obj":"T38"}],"text":" The use "}