With no explanation, label each line with "product-car", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Often
,
trains
were
reduced
to
just
three
Super
Saloons
and
two
passenger
brake
vans
,
allowing
the
final
diagramed
express
train
to
reach
higher
top
speeds
.
Often:O
,:O
trains:O
were:O
reduced:O
to:O
just:O
three:O
Super:product-car
Saloons:product-car
and:O
two:O
passenger:O
brake:O
vans:O
,:O
allowing:O
the:O
final:O
diagramed:O
express:O
train:O
to:O
reach:O
higher:O
top:O
speeds:O
.:O