With no explanation, label each line with "product-airplane", "O", "organization-government/governmentagency", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
There
were
also
at
least
three
private
Canadair
CL-215s
,
four
Government
of
Alberta
owned
Canadair
CL-215s
,
four
private
Lockheed
L188
Electra
air
tankers
and
at
least
one
Martin
Mars
air
tanker
attempting
to
put
out
the
fire
.
There:O
were:O
also:O
at:O
least:O
three:O
private:O
Canadair:product-airplane
CL-215s:product-airplane
,:O
four:O
Government:organization-government/governmentagency
of:organization-government/governmentagency
Alberta:organization-government/governmentagency
owned:O
Canadair:product-airplane
CL-215s:product-airplane
,:O
four:O
private:O
Lockheed:product-airplane
L188:product-airplane
Electra:product-airplane
air:product-airplane
tankers:product-airplane
and:O
at:O
least:O
one:O
Martin:product-airplane
Mars:product-airplane
air:product-airplane
tanker:product-airplane
attempting:O
to:O
put:O
out:O
the:O
fire:O
.:O