With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Due
to
the
devaluation
of
the
first
South
Korean
won
(
from
15
won
to
the
U.S
.
dollar
in
1945
to
6000
won
to
the
dollar
in
1953
)
,
the
hwan
was
introduced
in
1953
at
the
rate
of
1
hwan
=
100
won
.
Due:O
to:O
the:O
devaluation:O
of:O
the:O
first:O
South:location-GPE
Korean:location-GPE
won:O
(:O
from:O
15:O
won:O
to:O
the:O
U.S:location-GPE
.:location-GPE
dollar:O
in:O
1945:O
to:O
6000:O
won:O
to:O
the:O
dollar:O
in:O
1953:O
):O
,:O
the:O
hwan:O
was:O
introduced:O
in:O
1953:O
at:O
the:O
rate:O
of:O
1:O
hwan:O
=:O
100:O
won:O
.:O