With no explanation, label each line with "O", "other-biologything", "organization-other", "event-other", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
On
4
July
,
the
WHO
discontinued
the
hydroxychloroquine
trial
based
on
evidence
presented
at
the
July
WHO
Summit
on
COVID-19
research
and
innovation
.
On:O
4:O
July:O
,:O
the:O
WHO:organization-other
discontinued:O
the:O
hydroxychloroquine:other-chemicalthing
trial:O
based:O
on:O
evidence:O
presented:O
at:O
the:O
July:O
WHO:event-other
Summit:event-other
on:O
COVID-19:other-biologything
research:O
and:O
innovation:O
.:O