With no explanation, label each line with "O", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
All
three
locomotives
,
the
leading
Metrolink
passenger
car
,
and
ten
freight
cars
were
derailed
,
and
both
lead
locomotives
and
the
passenger
car
fell
over
.
All:O
three:O
locomotives:O
,:O
the:O
leading:O
Metrolink:product-train
passenger:O
car:O
,:O
and:O
ten:O
freight:O
cars:O
were:O
derailed:O
,:O
and:O
both:O
lead:O
locomotives:O
and:O
the:O
passenger:O
car:O
fell:O
over:O
.:O