With no explanation, label each line with "product-airplane", "O", "organization-other", "location-GPE", "person-soldier", "art-broadcastprogram", "art-film", "art-music", "art-other" or "art-painting" preceded by ":".
On
17
June
1941
,
Walker
took
off
from
RAF
Linton-on-Ouse
as
the
pilot
of
Whitley
Mark
V
bomber
N1462
to
conduct
a
bombing
raid
on
Cologne
.
On:O
17:O
June:O
1941:O
,:O
Walker:person-soldier
took:O
off:O
from:O
RAF:organization-other
Linton-on-Ouse:O
as:O
the:O
pilot:O
of:O
Whitley:product-airplane
Mark:product-airplane
V:product-airplane
bomber:product-airplane
N1462:product-airplane
to:O
conduct:O
a:O
bombing:O
raid:O
on:O
Cologne:location-GPE
.:O