With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
When
built
,
the
westbound
bridge
was
the
third
longest
suspension
bridge
span
in
the
world
.
When:O
built:O
,:O
the:O
westbound:building-other
bridge:building-other
was:O
the:O
third:O
longest:O
suspension:O
bridge:O
span:O
in:O
the:O
world:O
.:O