PMC:7205724 / 379-394 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T53","span":{"begin":1,"end":3},"obj":"IN"},{"id":"T54","span":{"begin":4,"end":7},"obj":"DT"},{"id":"T55","span":{"begin":8,"end":11},"obj":"NN"},{"id":"T56","span":{"begin":12,"end":14},"obj":"IN"}],"relations":[{"id":"R49","pred":"arg2Of","subj":"T55","obj":"T53"},{"id":"R50","pred":"arg1Of","subj":"T55","obj":"T54"},{"id":"R51","pred":"arg1Of","subj":"T55","obj":"T56"}],"text":" on the use of "}