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 ":".
For
the
ninth
and
twelfth
straight
years
,
Madison
Square
Garden
and
the
Kansas
City
Municipal
Auditorium
hosted
the
East
and
West
regionals
,
respectively
.
For:O
the:O
ninth:O
and:O
twelfth:O
straight:O
years:O
,:O
Madison:building-sportsfacility
Square:building-sportsfacility
Garden:building-sportsfacility
and:O
the:O
Kansas:building-sportsfacility
City:building-sportsfacility
Municipal:building-sportsfacility
Auditorium:building-sportsfacility
hosted:O
the:O
East:event-sportsevent
and:O
West:event-sportsevent
regionals:O
,:O
respectively:O
.:O