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
plane
,
a
Douglas
DC-3
,
flew
into
turbulence
from
a
thunderstorm
.
The:O
plane:O
,:O
a:O
Douglas:product-airplane
DC-3:product-airplane
,:O
flew:O
into:O
turbulence:O
from:O
a:O
thunderstorm:O
.:O