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 ":".
Heavy
water
struck
her
stern
,
driving
her
prow
down
to
the
muddy
bottom
,
and
then
slammed
her
stern
against
the
north
pier
.
Heavy:O
water:O
struck:O
her:O
stern:O
,:O
driving:O
her:O
prow:O
down:O
to:O
the:O
muddy:O
bottom:O
,:O
and:O
then:O
slammed:O
her:O
stern:O
against:O
the:O
north:O
pier:O
.:O