With no explanation, label each line with "O", "organization-sportsteam", "building-sportsfacility", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
first
incarnation
of
Portland
Buckaroos
played
their
home
games
at
the
Portland
Ice
Arena
.
The:O
first:O
incarnation:O
of:O
Portland:organization-sportsteam
Buckaroos:organization-sportsteam
played:O
their:O
home:O
games:O
at:O
the:O
Portland:building-sportsfacility
Ice:building-sportsfacility
Arena:building-sportsfacility
.:O