PMC:7205724 / 71-83 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T11","span":{"begin":2,"end":5},"obj":"NN"},{"id":"T12","span":{"begin":6,"end":8},"obj":"IN"}],"relations":[{"id":"R10","pred":"arg1Of","subj":"T11","obj":"T12"}],"text":"e use of mul"}