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
Cincinnati
Red
Stockings
of
were
baseball
's
first
openly
all-professional
team
,
with
ten
salaried
players
.
The:O
Cincinnati:organization-sportsteam
Red:organization-sportsteam
Stockings:organization-sportsteam
of:O
were:O
baseball:O
's:O
first:O
openly:O
all-professional:O
team:O
,:O
with:O
ten:O
salaried:O
players:O
.:O