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 ":".
There
are
also
a
number
of
regional
airports
scattered
across
the
state
.
There:O
are:O
also:O
a:O
number:O
of:O
regional:O
airports:O
scattered:O
across:O
the:O
state:O
.:O