PMC:7205724 / 67-77 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T10","span":{"begin":2,"end":5},"obj":"DT"},{"id":"T11","span":{"begin":6,"end":9},"obj":"NN"}],"relations":[{"id":"R9","pred":"arg1Of","subj":"T11","obj":"T10"}],"text":"r the use "}