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
serves
as
a
barrier
for
the
mainland
by
helping
drain
energy
from
the
storm
and
preventing
further
absorption
of
moisture
into
the
air
.
It:O
serves:O
as:O
a:O
barrier:O
for:O
the:O
mainland:O
by:O
helping:O
drain:O
energy:O
from:O
the:O
storm:O
and:O
preventing:O
further:O
absorption:O
of:O
moisture:O
into:O
the:O
air:O
.:O