With no explanation, label each line with "product-game", "O", "product-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
A
sequel
,
``
NBA
All-Star
Challenge
2
``
,
was
released
in
December
1993
exclusively
for
the
Game
Boy
.
A:O
sequel:O
,:O
``:O
NBA:product-game
All-Star:product-game
Challenge:product-game
2:product-game
``:O
,:O
was:O
released:O
in:O
December:O
1993:O
exclusively:O
for:O
the:O
Game:product-other
Boy:product-other
.:O