With no explanation, label each line with "O", "event-sportsevent", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
At
the
time
,
it
was
officially
the
``
AFL-NFL
World
Championship
Game
,
''
though
the
more
succinct
``
Super
Bowl
``
was
commonly
used
.
At:O
the:O
time:O
,:O
it:O
was:O
officially:O
the:O
``:O
AFL-NFL:event-sportsevent
World:event-sportsevent
Championship:event-sportsevent
Game:event-sportsevent
,:O
'':O
though:O
the:O
more:O
succinct:O
``:O
Super:event-sportsevent
Bowl:event-sportsevent
``:O
was:O
commonly:O
used:O
.:O