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 ":".
In
January
1958
,
a
small
group
of
instructor
pilots
from
Randolph
AFB
,
Texas
,
was
sent
to
Stead
AFB
to
determine
the
feasibility
of
advanced
helicopter
training
in
the
area
's
mountains
.
In:O
January:O
1958:O
,:O
a:O
small:O
group:O
of:O
instructor:O
pilots:O
from:O
Randolph:location-other
AFB:location-other
,:O
Texas:location-GPE
,:O
was:O
sent:O
to:O
Stead:location-other
AFB:location-other
to:O
determine:O
the:O
feasibility:O
of:O
advanced:O
helicopter:O
training:O
in:O
the:O
area:O
's:O
mountains:O
.:O