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 ":".
The
freight
train
was
led
by
two
EMD
SD70ACe
locomotives
,
#
8485
and
8491
,
and
was
pulling
17
freight
cars
.
The:O
freight:O
train:O
was:O
led:O
by:O
two:O
EMD:product-train
SD70ACe:product-train
locomotives:O
,:O
#:O
8485:O
and:O
8491:O
,:O
and:O
was:O
pulling:O
17:O
freight:O
cars:O
.:O