With no explanation, label each line with "O", "location-island", "organization-other", "location-bodiesofwater", "product-ship", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
``
U-633
``
was
sunk
on
8
March
1943
in
the
North
Atlantic
south-west
of
Iceland
,
in
position
58.21N
,
31.00W
,
by
depth
charges
from
the
US
Coast
Guard
cutter
USCGC
Spencer
.
``:O
U-633:product-ship
``:O
was:O
sunk:O
on:O
8:O
March:O
1943:O
in:O
the:O
North:location-bodiesofwater
Atlantic:location-bodiesofwater
south-west:O
of:O
Iceland:location-island
,:O
in:O
position:O
58.21N:O
,:O
31.00W:O
,:O
by:O
depth:O
charges:O
from:O
the:O
US:organization-other
Coast:organization-other
Guard:organization-other
cutter:O
USCGC:product-ship
Spencer:product-ship
.:O