With no explanation, label each line with "location-GPE", "O", "location-park", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
To
the
north
of
Cottbus
the
river
enters
the
Spreewald
,
a
large
wetlands
area
in
Lower
Lusatia
.
To:O
the:O
north:O
of:O
Cottbus:O
the:O
river:O
enters:O
the:O
Spreewald:location-park
,:O
a:O
large:O
wetlands:O
area:O
in:O
Lower:location-GPE
Lusatia:location-GPE
.:O