With no explanation, label each line with "location-GPE", "O", "location-road/railway/highway/transit", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
There
are
no
Tube
stations
currently
in
the
borough
,
as
the
East
London
Line
has
been
part
of
London
Overground
since
2006
.
There:O
are:O
no:O
Tube:O
stations:O
currently:O
in:O
the:O
borough:O
,:O
as:O
the:O
East:location-road/railway/highway/transit
London:location-road/railway/highway/transit
Line:location-road/railway/highway/transit
has:O
been:O
part:O
of:O
London:location-GPE
Overground:O
since:O
2006:O
.:O