With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
While
working
for
American
he
started
his
own
small
transport
service
,
flying
personnel
and
material
on
special
request
flights
to
areas
in
need
.
While:O
working:O
for:O
American:location-GPE
he:O
started:O
his:O
own:O
small:O
transport:O
service:O
,:O
flying:O
personnel:O
and:O
material:O
on:O
special:O
request:O
flights:O
to:O
areas:O
in:O
need:O
.:O