PMC:7205724 / 380-390 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T53","span":{"begin":0,"end":2},"obj":"IN"},{"id":"T54","span":{"begin":3,"end":6},"obj":"DT"},{"id":"T55","span":{"begin":7,"end":10},"obj":"NN"}],"relations":[{"id":"R49","pred":"arg2Of","subj":"T55","obj":"T53"},{"id":"R50","pred":"arg1Of","subj":"T55","obj":"T54"}],"text":"on the use"}