With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
For
example
,
failure
to
properly
close
a
cargo
door
on
Turkish
Airlines
Flight
981
in
1974
caused
the
loss
of
the
aircraft
.
For:O
example:O
,:O
failure:O
to:O
properly:O
close:O
a:O
cargo:O
door:O
on:O
Turkish:organization-company
Airlines:organization-company
Flight:O
981:O
in:O
1974:O
caused:O
the:O
loss:O
of:O
the:O
aircraft:O
.:O