With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
closed
in
1970
,
when
the
local
stopping
service
over
the
line
was
withdrawn
by
British
Rail
.
It:O
closed:O
in:O
1970:O
,:O
when:O
the:O
local:O
stopping:O
service:O
over:O
the:O
line:O
was:O
withdrawn:O
by:O
British:organization-company
Rail:organization-company
.:O