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 ":".
A
similar
situation
occurred
with
Comet
Shoemaker-Levy
9
in
July
1994
,
when
the
comet
broke
apart
and
collided
with
Jupiter
.
A:O
similar:O
situation:O
occurred:O
with:O
Comet:other-astronomything
Shoemaker-Levy:other-astronomything
9:other-astronomything
in:O
July:O
1994:O
,:O
when:O
the:O
comet:O
broke:O
apart:O
and:O
collided:O
with:O
Jupiter:other-astronomything
.:O