With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
player
controls
a
spaceship
and
must
maneuver
it
through
a
mine
field
.
The:O
player:O
controls:O
a:O
spaceship:O
and:O
must:O
maneuver:O
it:O
through:O
a:O
mine:O
field:O
.:O