With no explanation, label each line with "O", "building-airport", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-hospital" or "building-hotel" preceded by ":".
Naval
Air
Station
Jacksonville
is
a
military
airport
located
south
of
the
central
business
district
.
Naval:building-airport
Air:building-airport
Station:building-airport
Jacksonville:building-airport
is:O
a:O
military:O
airport:O
located:O
south:O
of:O
the:O
central:O
business:O
district:O
.:O