With no explanation, label each line with "location-GPE", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Guangzhou–Kowloon
through
train
(
)
is
an
inter-city
railway
service
between
Hong
Kong
and
Guangzhou
jointly
operated
by
the
MTR
Corporation
of
Hong
Kong
and
the
Guangzhou
Railway
Group
of
mainland
China
.
The:O
Guangzhou–Kowloon:O
through:O
train:O
(:O
):O
is:O
an:O
inter-city:O
railway:O
service:O
between:O
Hong:location-GPE
Kong:location-GPE
and:O
Guangzhou:location-GPE
jointly:O
operated:O
by:O
the:O
MTR:organization-company
Corporation:organization-company
of:O
Hong:location-GPE
Kong:location-GPE
and:O
the:O
Guangzhou:organization-company
Railway:organization-company
Group:organization-company
of:O
mainland:O
China:location-GPE
.:O