With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
stabilizes
p53
and
causes
a
large
increase
in
p53
concentration
.
This:O
stabilizes:O
p53:other-biologything
and:O
causes:O
a:O
large:O
increase:O
in:O
p53:other-biologything
concentration:O
.:O