With no explanation, label each line with "location-GPE", "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Heston
Aerodrome
was
an
airfield
located
to
the
west
of
London
,
England
,
operational
between
1929
and
1947
.
Heston:location-other
Aerodrome:location-other
was:O
an:O
airfield:O
located:O
to:O
the:O
west:O
of:O
London:location-GPE
,:O
England:location-GPE
,:O
operational:O
between:O
1929:O
and:O
1947:O
.:O