With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Theoretically
,
by
widening
blood
vessels
and
opening
potassium
channels
,
it
allows
more
oxygen
,
blood
,
and
nutrients
to
the
follicles
.
Theoretically:O
,:O
by:O
widening:O
blood:O
vessels:O
and:O
opening:O
potassium:other-biologything
channels:O
,:O
it:O
allows:O
more:O
oxygen:O
,:O
blood:O
,:O
and:O
nutrients:O
to:O
the:O
follicles:O
.:O