With no explanation, label each line with "O", "event-sportsevent", "building-sportsfacility", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Santa
Anita
Park
honored
him
by
renaming
the
Santa
Anita
Maturity
Stakes
the
Charles
H.
Strub
Stakes
.
Santa:building-sportsfacility
Anita:building-sportsfacility
Park:building-sportsfacility
honored:O
him:O
by:O
renaming:O
the:O
Santa:event-sportsevent
Anita:event-sportsevent
Maturity:event-sportsevent
Stakes:event-sportsevent
the:O
Charles:event-sportsevent
H.:event-sportsevent
Strub:event-sportsevent
Stakes:event-sportsevent
.:O