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 ":".
94
were
built
(
numbered
8001-8094
)
,
but
many
have
been
retired
as
new
replacements
enter
service
.
94:O
were:O
built:O
(:O
numbered:O
8001-8094:O
):O
,:O
but:O
many:O
have:O
been:O
retired:O
as:O
new:O
replacements:O
enter:O
service:O
.:O