PMC:7205724 / 378-391 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T53","span":{"begin":2,"end":4},"obj":"IN"},{"id":"T54","span":{"begin":5,"end":8},"obj":"DT"},{"id":"T55","span":{"begin":9,"end":12},"obj":"NN"}],"relations":[{"id":"R49","pred":"arg2Of","subj":"T55","obj":"T53"},{"id":"R50","pred":"arg1Of","subj":"T55","obj":"T54"}],"text":"t on the use "}