With no explanation, label each line with "building-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Of
those
killed
,
64
were
on
the
hijacked
airplane
,
and
125
were
in
the
Pentagon
.
Of:O
those:O
killed:O
,:O
64:O
were:O
on:O
the:O
hijacked:O
airplane:O
,:O
and:O
125:O
were:O
in:O
the:O
Pentagon:building-other
.:O