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 ":".
is
a
fighting
video
game
in
the
``
Mega
Man
``
series
of
video
games
.
is:O
a:O
fighting:O
video:O
game:O
in:O
the:O
``:O
Mega:product-game
Man:product-game
``:O
series:O
of:O
video:O
games:O
.:O