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 ":".
GPA
grew
to
be
the
world
's
biggest
aircraft
lessor
,
worth
$
4
billion
at
its
peak
.
GPA:organization-company
grew:O
to:O
be:O
the:O
world:O
's:O
biggest:O
aircraft:O
lessor:O
,:O
worth:O
$:O
4:O
billion:O
at:O
its:O
peak:O
.:O