PubMed:32231171 / 1199-1207 JSONTXT

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    LitCovid-TimeML

    {"project":"LitCovid-TimeML","denotations":[{"id":"tok246","span":{"begin":0,"end":8},"obj":"VBN"},{"id":"event5","span":{"begin":0,"end":8},"obj":"OCCURRENCE"}],"text":"observed"}