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 ":".
All
50
remaining
speakers
of
Haida
are
over
70
years
old
.
All:O
50:O
remaining:O
speakers:O
of:O
Haida:other-language
are:O
over:O
70:O
years:O
old:O
.:O