With no explanation, label each line with "O", "organization-sportsleague", "organization-sportsteam", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
It
is
the
home
of
Club
Atlético
Douglas
Haig
of
the
Primera
B
Nacional
.
It:O
is:O
the:O
home:O
of:O
Club:organization-sportsteam
Atlético:organization-sportsteam
Douglas:organization-sportsteam
Haig:organization-sportsteam
of:O
the:O
Primera:organization-sportsleague
B:organization-sportsleague
Nacional:organization-sportsleague
.:O