PubMed:32133152 / 184-192
Annnotations
LitCovid-PAS-Enju
{"project":"LitCovid-PAS-Enju","denotations":[{"id":"EnjuParser_T29","span":{"begin":0,"end":8},"obj":"VBD"}],"text":"happened"}
LitCovid-TimeML
{"project":"LitCovid-TimeML","denotations":[{"id":"tok36","span":{"begin":0,"end":8},"obj":"VBD"},{"id":"event13","span":{"begin":0,"end":8},"obj":"OCCURRENCE"}],"text":"happened"}