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 ":".
The
dry
root
of
``
Veratrum
nigrum
''
can
lower
blood
pressure
and
slow
heart
rate
,
possibly
by
stimulating
the
vagus
nerve
,
if
taken
in
small
doses
internally
.
The:O
dry:O
root:O
of:O
``:O
Veratrum:O
nigrum:O
'':O
can:O
lower:O
blood:O
pressure:O
and:O
slow:O
heart:O
rate:O
,:O
possibly:O
by:O
stimulating:O
the:O
vagus:O
nerve:O
,:O
if:O
taken:O
in:O
small:O
doses:O
internally:O
.:O