With no explanation, label each line with "location-GPE", "O", "other-language", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Dongolawi
is
a
Nubian
language
of
northern
Sudan
.
Dongolawi:other-language
is:O
a:O
Nubian:other-language
language:other-language
of:O
northern:O
Sudan:location-GPE
.:O