With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
On
August
3
,
2020
,
he
was
elected
leader
at
the
party
's
convention
,
receiving
approximately
two-thirds
of
votes
cast
.
On:O
August:O
3:O
,:O
2020:O
,:O
he:O
was:O
elected:O
leader:O
at:O
the:O
party:O
's:O
convention:O
,:O
receiving:O
approximately:O
two-thirds:O
of:O
votes:O
cast:O
.:O