With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
inactivation
or
degradation
leads
to
cell
cycle
exit
and
differentiation
.
inactivation:O
or:O
degradation:O
leads:O
to:O
cell:O
cycle:O
exit:O
and:O
differentiation:O
.:O