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 ":".
Ridership
growth
has
been
linked
to
the
expansion
of
businesses
near
Caltrain
stations
,
a
shift
in
attitudes
against
the
use
of
cars
for
commuting
,
and
the
expansion
Caltrain
service
which
has
included
extra
trains
and
the
introduction
of
fast
express
services
(
``
Baby
Bullet
''
service
)
.
Ridership:O
growth:O
has:O
been:O
linked:O
to:O
the:O
expansion:O
of:O
businesses:O
near:O
Caltrain:product-train
stations:O
,:O
a:O
shift:O
in:O
attitudes:O
against:O
the:O
use:O
of:O
cars:O
for:O
commuting:O
,:O
and:O
the:O
expansion:O
Caltrain:product-train
service:O
which:O
has:O
included:O
extra:O
trains:O
and:O
the:O
introduction:O
of:O
fast:O
express:O
services:O
(:O
``:O
Baby:O
Bullet:O
'':O
service:O
):O
.:O