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 ":".
This
bridge
was
also
the
longest
suspension
bridge
in
the
world
from
its
opening
until
1903
,
and
is
the
first
steel-wire
suspension
bridge
.
This:O
bridge:O
was:O
also:O
the:O
longest:O
suspension:O
bridge:O
in:O
the:O
world:O
from:O
its:O
opening:O
until:O
1903:O
,:O
and:O
is:O
the:O
first:O
steel-wire:O
suspension:O
bridge:O
.:O