With no explanation, label each line with "building-other", "O", "location-road/railway/highway/transit", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
maintenance
work
on
the
North
London
Line
was
completed
in
May
2011
has
enabled
extra
services
to
run
all
day
which
have
replaced
the
additional
shuttle
trains
running
between
Camden
Road
and
Stratford
stations
in
the
morning
and
evening
peaks
.
The:O
maintenance:O
work:O
on:O
the:O
North:location-road/railway/highway/transit
London:location-road/railway/highway/transit
Line:location-road/railway/highway/transit
was:O
completed:O
in:O
May:O
2011:O
has:O
enabled:O
extra:O
services:O
to:O
run:O
all:O
day:O
which:O
have:O
replaced:O
the:O
additional:O
shuttle:O
trains:O
running:O
between:O
Camden:location-road/railway/highway/transit
Road:location-road/railway/highway/transit
and:O
Stratford:building-other
stations:building-other
in:O
the:O
morning:O
and:O
evening:O
peaks:O
.:O