With no explanation, label each line with "O", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
IVF
is
available
for
women
aged
18
to
45
.
IVF:other-medical
is:O
available:O
for:O
women:O
aged:O
18:O
to:O
45:O
.:O