With no explanation, label each line with "product-airplane", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
first
aircraft
,
F.300
,
made
its
first
flight
on
29
September
1931
.
The:O
first:O
aircraft:O
,:O
F.300:product-airplane
,:O
made:O
its:O
first:O
flight:O
on:O
29:O
September:O
1931:O
.:O