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 ":".
This
situation
ended
with
the
revolutions
of
1989
,
the
end
of
Communism
in
Hungary
and
the
breakup
of
Yugoslavia
.
This:O
situation:O
ended:O
with:O
the:O
revolutions:event-other
of:event-other
1989:event-other
,:O
the:O
end:O
of:O
Communism:O
in:O
Hungary:location-GPE
and:O
the:O
breakup:O
of:O
Yugoslavia:location-GPE
.:O