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 ":".
After
returning
the
Patoka
to
service
,
Verge
was
promoted
to
Lietenant
Commander
(
LCDR
)
on
August
21
,
1940
.
After:O
returning:O
the:O
Patoka:location-GPE
to:O
service:O
,:O
Verge:person-other
was:O
promoted:O
to:O
Lietenant:O
Commander:O
(:O
LCDR:O
):O
on:O
August:O
21:O
,:O
1940:O
.:O