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 ":".
Both
General
Electric
and
Pratt
&
amp
;
Whitney/Allison
demonstrated
propfan
engines
in
the
1980s
.
Both:O
General:organization-company
Electric:organization-company
and:O
Pratt:organization-company
&:organization-company
amp:organization-company
;:organization-company
Whitney/Allison:organization-company
demonstrated:O
propfan:O
engines:O
in:O
the:O
1980s:O
.:O