With no explanation, label each line with "location-other", "O", "organization-company", "product-train", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
British
Rail
Class
502
was
a
type
of
electric
multiple
unit
originally
built
by
the
London
Midland
and
Scottish
Railway
at
its
Derby
Works
.
The:O
British:product-train
Rail:product-train
Class:product-train
502:product-train
was:O
a:O
type:O
of:O
electric:O
multiple:O
unit:O
originally:O
built:O
by:O
the:O
London:organization-company
Midland:organization-company
and:O
Scottish:organization-company
Railway:organization-company
at:O
its:O
Derby:location-other
Works:location-other
.:O