PMC:7205724 / 2807-2810 JSONTXT

{"project":"LitCovid-sample-Enju","denotations":[{"id":"T436","span":{"begin":1,"end":2},"obj":"-LRB-"},{"id":"T437","span":{"begin":2,"end":3},"obj":"CD"}],"relations":[{"id":"R435","pred":"arg2Of","subj":"T437","obj":"T436"}],"text":" [1"}