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
degradation
causes
release
of
p21
from
Cdk4
complexes
,
which
inactivates
Cdk2
in
a
p53
-independent
manner
.
This:O
degradation:O
causes:O
release:O
of:O
p21:other-biologything
from:O
Cdk4:other-biologything
complexes:O
,:O
which:O
inactivates:O
Cdk2:other-biologything
in:O
a:O
p53:other-biologything
-independent:O
manner:O
.:O