With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
Obama
campaign
ran
only
on
the
Xbox
360
version
of
the
game
.
The:O
Obama:person-politician
campaign:O
ran:O
only:O
on:O
the:O
Xbox:O
360:O
version:O
of:O
the:O
game:O
.:O