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
Sirenikski
language
,
which
is
virtually
extinct
,
is
sometimes
regarded
as
a
third
branch
of
the
Eskimo
language
family
.
The:O
Sirenikski:O
language:O
,:O
which:O
is:O
virtually:O
extinct:O
,:O
is:O
sometimes:O
regarded:O
as:O
a:O
third:O
branch:O
of:O
the:O
Eskimo:other-language
language:O
family:O
.:O