With no explanation, label each line with "location-GPE", "O", "event-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
After
four
countries
won
the
Contest
in
1969
,
Sweden
-
as
all
the
other
Scandinavian
countries
-
withdrew
from
the
1970
contest
,
in
protest
of
the
voting
system
.
After:O
four:O
countries:O
won:O
the:O
Contest:event-other
in:O
1969:O
,:O
Sweden:location-GPE
-:O
as:O
all:O
the:O
other:O
Scandinavian:location-GPE
countries:O
-:O
withdrew:O
from:O
the:O
1970:O
contest:O
,:O
in:O
protest:O
of:O
the:O
voting:O
system:O
.:O