With no explanation, label each line with "O", "other-astronomything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
data
neither
proves
nor
disproves
that
Planet
Nine
exists
.
This:O
data:O
neither:O
proves:O
nor:O
disproves:O
that:O
Planet:other-astronomything
Nine:other-astronomything
exists:O
.:O