PMC:7205724 / 384-393 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T55","span":{"begin":3,"end":6},"obj":"NN"},{"id":"T56","span":{"begin":7,"end":9},"obj":"IN"}],"relations":[{"id":"R51","pred":"arg1Of","subj":"T55","obj":"T56"}],"text":"he use of"}