With no explanation, label each line with "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Stout
operated
in
close
conjunction
with
his
aircraft
production
company
,
Stout
Metal
Airplane
company
.
Stout:organization-company
operated:O
in:O
close:O
conjunction:O
with:O
his:O
aircraft:O
production:O
company:O
,:O
Stout:organization-company
Metal:organization-company
Airplane:organization-company
company:O
.:O