With no explanation, label each line with "other-disease", "O", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
breast
cancer
,
the
acquisition
of
tamoxifen
resistance
is
another
major
therapeutic
problem
.
In:O
breast:other-disease
cancer:other-disease
,:O
the:O
acquisition:O
of:O
tamoxifen:other-medical
resistance:O
is:O
another:O
major:O
therapeutic:O
problem:O
.:O