With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
A
few
hangars
,
a
restaurant
,
and
fuel
facilities
were
also
added
.
A:O
few:O
hangars:O
,:O
a:O
restaurant:O
,:O
and:O
fuel:O
facilities:O
were:O
also:O
added:O
.:O