With no explanation, label each line with "location-GPE", "O", "location-mountain", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Skoparnik
(
)
is
the
third
highest
peak
of
Vitosha
Mountain
in
Bulgaria
.
Skoparnik:location-mountain
(:O
):O
is:O
the:O
third:O
highest:O
peak:O
of:O
Vitosha:location-mountain
Mountain:location-mountain
in:O
Bulgaria:location-GPE
.:O