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 ":".
For
a
short
time
in
late
1940s
Hercules
diesels
were
used
,
but
as
soon
as
their
production
ended
,
SAT
was
forced
to
find
new
power
options
.
For:O
a:O
short:O
time:O
in:O
late:O
1940s:O
Hercules:organization-company
diesels:O
were:O
used:O
,:O
but:O
as:O
soon:O
as:O
their:O
production:O
ended:O
,:O
SAT:organization-company
was:O
forced:O
to:O
find:O
new:O
power:O
options:O
.:O