PMC:7205724 / 272-287 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T38","span":{"begin":1,"end":4},"obj":"DT"},{"id":"T39","span":{"begin":5,"end":8},"obj":"NN"},{"id":"T40","span":{"begin":9,"end":11},"obj":"IN"}],"relations":[{"id":"R34","pred":"arg1Of","subj":"T39","obj":"T38"},{"id":"R35","pred":"arg1Of","subj":"T39","obj":"T40"}],"text":" The use of cor"}