PMC:7199903 / 249-260 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T35","span":{"begin":0,"end":8},"obj":"NN"},{"id":"T36","span":{"begin":9,"end":11},"obj":"IN"}],"relations":[{"id":"R33","pred":"arg1Of","subj":"T35","obj":"T36"}],"text":"protomer in"}