With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Among
the
innovations
of
the
``
D
''
s
were
the
first
New
York
rolling
stock
to
include
front
destination
signs
with
a
route
designation
.
Among:O
the:O
innovations:O
of:O
the:O
``:O
D:O
'':O
s:O
were:O
the:O
first:O
New:location-GPE
York:location-GPE
rolling:O
stock:O
to:O
include:O
front:O
destination:O
signs:O
with:O
a:O
route:O
designation:O
.:O