With no explanation, label each line with "product-game", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
single
was
used
as
an
image
song
for
PlayStation
portable
game
``
Monster
Rancher
2
``
.
The:O
single:O
was:O
used:O
as:O
an:O
image:O
song:O
for:O
PlayStation:O
portable:O
game:O
``:O
Monster:product-game
Rancher:product-game
2:product-game
``:O
.:O