PubMed:32217650 / 815-843 JSONTXT

{"project":"LitCovid-sentences-v1","denotations":[{"id":"TextSentencer_T12","span":{"begin":0,"end":28},"obj":"Sentence"}],"text":"The mean age was 48.9 years."}

{"project":"LitCovid-TimeML","denotations":[{"id":"tok137","span":{"begin":0,"end":3},"obj":"DT"},{"id":"tok138","span":{"begin":4,"end":8},"obj":"JJ"},{"id":"tok139","span":{"begin":9,"end":12},"obj":"NN"},{"id":"tok140","span":{"begin":13,"end":16},"obj":"VBD"},{"id":"tok141","span":{"begin":17,"end":19},"obj":"CD"},{"id":"tok142","span":{"begin":19,"end":20},"obj":"."},{"id":"tok143","span":{"begin":20,"end":21},"obj":"CD"},{"id":"tok144","span":{"begin":22,"end":27},"obj":"NNS"},{"id":"tok145","span":{"begin":27,"end":28},"obj":"."},{"id":"lookup22","span":{"begin":22,"end":27},"obj":"date_unit"}],"text":"The mean age was 48.9 years."}

{"project":"MeasurableQuantitativeAnnotation","denotations":[{"id":"E1","span":{"begin":4,"end":12},"obj":"entity"},{"id":"N1","span":{"begin":17,"end":21},"obj":"num"}],"text":"The mean age was 48.9 years."}