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 ":".
Tony
Hawk
's
American
Sk8land
is
a
skateboarding
video
game
in
the
``
Tony
Hawk
's
``
series
.
Tony:product-game
Hawk:product-game
's:product-game
American:product-game
Sk8land:product-game
is:O
a:O
skateboarding:O
video:O
game:O
in:O
the:O
``:O
Tony:product-game
Hawk:product-game
's:product-game
``:O
series:O
.:O