With no explanation, label each line with "location-GPE", "O", "event-sportsevent", "building-sportsfacility", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
The
1989
Skate
America
was
held
at
Market
Square
Arena
in
Indianapolis
,
Indiana
.
The:O
1989:O
Skate:event-sportsevent
America:event-sportsevent
was:O
held:O
at:O
Market:building-sportsfacility
Square:building-sportsfacility
Arena:building-sportsfacility
in:O
Indianapolis:location-GPE
,:O
Indiana:location-GPE
.:O