With no explanation, label each line with "O", "location-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
While
at
RAF
Wittering
in
October
1946
,
No
.
While:O
at:O
RAF:location-other
Wittering:location-other
in:O
October:O
1946:O
,:O
No:O
.:O