With no explanation, label each line with "product-airplane", "O", "building-airport", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-hospital" preceded by ":".
56
Squadron
at
RAF
Wattisham
,
from
where
he
flew
Lightnings
,
in
1962
.
56:O
Squadron:O
at:O
RAF:building-airport
Wattisham:building-airport
,:O
from:O
where:O
he:O
flew:O
Lightnings:product-airplane
,:O
in:O
1962:O
.:O