PMC:7205724 / 66-77 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T10","span":{"begin":3,"end":6},"obj":"DT"},{"id":"T11","span":{"begin":7,"end":10},"obj":"NN"}],"relations":[{"id":"R9","pred":"arg1Of","subj":"T11","obj":"T10"}],"text":"or the use "}