With no explanation, label each line with "O", "other-language", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Nuristani
languages
were
not
described
in
literature
until
the
19th
century
.
The:O
Nuristani:other-language
languages:other-language
were:O
not:O
described:O
in:O
literature:O
until:O
the:O
19th:O
century:O
.:O