With no explanation, label each line with "location-GPE", "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Slave
voyage
#
4
(
1802-1803
)
:
Captain
Isaac
Westron
sailed
from
Liverpool
31
August
1802
.
Slave:O
voyage:O
#:O
4:O
(:O
1802-1803:O
):O
::O
Captain:O
Isaac:person-other
Westron:person-other
sailed:O
from:O
Liverpool:location-GPE
31:O
August:O
1802:O
.:O