With no explanation, label each line with "O", "location-mountain", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Petersen
Peak
(
)
is
a
rock
peak
(
1,215
m
)
standing
6
nautical
miles
(
11
km
)
southwest
of
Morris
Hills
in
the
north-central
part
of
Shackleton
Range
.
Petersen:location-mountain
Peak:location-mountain
(:O
):O
is:O
a:O
rock:O
peak:O
(:O
1,215:O
m:O
):O
standing:O
6:O
nautical:O
miles:O
(:O
11:O
km:O
):O
southwest:O
of:O
Morris:location-mountain
Hills:location-mountain
in:O
the:O
north-central:O
part:O
of:O
Shackleton:location-mountain
Range:location-mountain
.:O