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 ":".
Common
areas
to
which
the
cancer
may
spread
include
the
lining
of
the
abdomen
,
lymph
nodes
,
lungs
,
and
liver
.
Common:O
areas:O
to:O
which:O
the:O
cancer:O
may:O
spread:O
include:O
the:O
lining:O
of:O
the:O
abdomen:O
,:O
lymph:O
nodes:O
,:O
lungs:O
,:O
and:O
liver:O
.:O