With no explanation, label each line with "other-disease", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
consists
of
fashioning
two
orthogonal
and
deep
central
grooves
in
the
crystalline
lens
nucleus
,
followed
by
mechanical
fracturing
of
the
cataract
with
the
phacoemulsification
probe
and
second
instrument
.
It:O
consists:O
of:O
fashioning:O
two:O
orthogonal:O
and:O
deep:O
central:O
grooves:O
in:O
the:O
crystalline:O
lens:O
nucleus:O
,:O
followed:O
by:O
mechanical:O
fracturing:O
of:O
the:O
cataract:other-disease
with:O
the:O
phacoemulsification:O
probe:O
and:O
second:O
instrument:O
.:O