PMC:7253482 / 3927-3939 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T590","span":{"begin":0,"end":4},"obj":"VBN"},{"id":"T591","span":{"begin":5,"end":10},"obj":"VBN"}],"relations":[{"id":"R592","pred":"arg2Of","subj":"T591","obj":"T590"}],"text":"been shown t"}