With no explanation, label each line with "O", "organization-other", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Almost
immediately
after
the
derailment
,
a
Travelling
Post
Office
mail
train
hauled
by
a
Rail
Express
Systems
British
Rail
Class
86
electric
locomotive
(
no
86239
)
collided
with
a
section
of
the
derailed
freight
train
on
the
adjacent
line
and
fouled
the
path
of
the
TPO
mail
train
.
Almost:O
immediately:O
after:O
the:O
derailment:O
,:O
a:O
Travelling:organization-other
Post:organization-other
Office:organization-other
mail:O
train:O
hauled:O
by:O
a:O
Rail:product-train
Express:product-train
Systems:product-train
British:product-train
Rail:product-train
Class:product-train
86:product-train
electric:product-train
locomotive:product-train
(:O
no:O
86239:O
):O
collided:O
with:O
a:O
section:O
of:O
the:O
derailed:O
freight:O
train:O
on:O
the:O
adjacent:O
line:O
and:O
fouled:O
the:O
path:O
of:O
the:O
TPO:product-train
mail:O
train:O
.:O