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 ":".
It
operated
a
fleet
of
Beech
Barons
,
a
Beech
Queen
Air
,
several
Piper
Apache
and
Aztec
aircraft
,
a
Cessna
180
and
a
Britten-Norman
BN-2
Islander
.
It:O
operated:O
a:O
fleet:O
of:O
Beech:product-airplane
Barons:product-airplane
,:O
a:O
Beech:product-airplane
Queen:product-airplane
Air:product-airplane
,:O
several:O
Piper:product-airplane
Apache:product-airplane
and:O
Aztec:product-airplane
aircraft:product-airplane
,:O
a:O
Cessna:product-airplane
180:product-airplane
and:O
a:O
Britten-Norman:product-airplane
BN-2:product-airplane
Islander:product-airplane
.:O