PMC:7205724 / 357-397 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T50","span":{"begin":1,"end":9},"obj":"JJ"},{"id":"T51","span":{"begin":10,"end":16},"obj":"NNS"},{"id":"T52","span":{"begin":17,"end":22},"obj":"VBP"},{"id":"T53","span":{"begin":23,"end":25},"obj":"IN"},{"id":"T54","span":{"begin":26,"end":29},"obj":"DT"},{"id":"T55","span":{"begin":30,"end":33},"obj":"NN"},{"id":"T56","span":{"begin":34,"end":36},"obj":"IN"}],"relations":[{"id":"R46","pred":"arg1Of","subj":"T51","obj":"T50"},{"id":"R47","pred":"arg1Of","subj":"T51","obj":"T52"},{"id":"R48","pred":"arg1Of","subj":"T52","obj":"T53"},{"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":" clinical trials exist on the use of cor"}