With no explanation, label each line with "O", "organization-company", "organization-other", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
With
Clare
Balding
,
Carson
co-presented
BBC
horse
racing
on
BBC1
until
the
BBC
ended
their
racing
coverage
at
the
end
of
the
2012
season
.
With:O
Clare:person-other
Balding:person-other
,:O
Carson:person-other
co-presented:O
BBC:organization-company
horse:O
racing:O
on:O
BBC1:organization-other
until:O
the:O
BBC:organization-company
ended:O
their:O
racing:O
coverage:O
at:O
the:O
end:O
of:O
the:O
2012:O
season:O
.:O