With no explanation, label each line with "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Twelve
minutes
into
its
flight
,
the
Boeing
747
suffered
an
explosive
decompression
due
to
failure
of
its
rear
pressure
bulkhead
,
caused
by
a
faulty
repair
7
years
earlier
.
Twelve:O
minutes:O
into:O
its:O
flight:O
,:O
the:O
Boeing:product-airplane
747:product-airplane
suffered:O
an:O
explosive:O
decompression:O
due:O
to:O
failure:O
of:O
its:O
rear:O
pressure:O
bulkhead:O
,:O
caused:O
by:O
a:O
faulty:O
repair:O
7:O
years:O
earlier:O
.:O