With no explanation, label each line with "organization-other", "location-other", "person-politician", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
ROKS
``
Gang
Gam-chan
``
has
been
sent
on
patrol
duty
to
Gulf
of
Aden
on
13
August
2019
.
ROKS:organization-other
``:O
Gang:person-politician
Gam-chan:person-politician
``:O
has:O
been:O
sent:O
on:O
patrol:O
duty:O
to:O
Gulf:location-other
of:location-other
Aden:location-other
on:O
13:O
August:O
2019:O
.:O