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 ":".
It
increases
the
risk
of
abnormal
heart
rhythms
and
sudden
cardiac
death
.
It:O
increases:O
the:O
risk:O
of:O
abnormal:O
heart:O
rhythms:O
and:O
sudden:O
cardiac:O
death:O
.:O