With no explanation, label each line with "other-disease", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
is
not
definitely
established
whether
they
had
HACE
or
acute
decompression
sickness
.
It:O
is:O
not:O
definitely:O
established:O
whether:O
they:O
had:O
HACE:other-disease
or:O
acute:O
decompression:O
sickness:O
.:O