With no explanation, label each line with "O", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
first
game
was
played
on
10
July
2010
against
Chasetown
but
it
was
officially
opened
on
22
July
,
Cardiff
played
Scottish
giants
Celtic
.
The:O
first:O
game:O
was:O
played:O
on:O
10:O
July:O
2010:O
against:O
Chasetown:organization-sportsteam
but:O
it:O
was:O
officially:O
opened:O
on:O
22:O
July:O
,:O
Cardiff:organization-sportsteam
played:O
Scottish:organization-sportsteam
giants:organization-sportsteam
Celtic:organization-sportsteam
.:O