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
is
characterized
by
muscle
hyperexcitability
or
weakness
which
,
exacerbated
by
potassium
,
heat
or
cold
,
can
lead
to
uncontrolled
shaking
followed
by
paralysis
.
It:O
is:O
characterized:O
by:O
muscle:O
hyperexcitability:O
or:O
weakness:O
which:O
,:O
exacerbated:O
by:O
potassium:O
,:O
heat:O
or:O
cold:O
,:O
can:O
lead:O
to:O
uncontrolled:O
shaking:O
followed:O
by:O
paralysis:O
.:O