With no explanation, label each line with "location-GPE", "O", "building-airport", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Many
passengers
use
this
platform
to
go
to
central
London
,
London
St
Pancras
International
&
amp
;
Luton
Airport
Parkway
.
Many:O
passengers:O
use:O
this:O
platform:O
to:O
go:O
to:O
central:O
London:location-GPE
,:location-GPE
London:location-other
St:location-other
Pancras:location-other
International:location-other
&:location-other
amp:location-other
;:O
Luton:building-airport
Airport:building-airport
Parkway:building-airport
.:O