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 ":".
``
Galaxy
Game
``
is
an
expanded
version
of
the
1962
``
Spacewar
!
``:O
Galaxy:product-game
Game:product-game
``:O
is:O
an:O
expanded:O
version:O
of:O
the:O
1962:O
``:O
Spacewar:O
!:O