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 ":".
For
instance
,
tamoxifen
has
predominantly
antiestrogenic
effects
in
the
breasts
but
predominantly
estrogenic
effects
in
the
uterus
and
liver
.
For:O
instance:O
,:O
tamoxifen:other-medical
has:O
predominantly:O
antiestrogenic:O
effects:O
in:O
the:O
breasts:O
but:O
predominantly:O
estrogenic:O
effects:O
in:O
the:O
uterus:O
and:O
liver:O
.:O