With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
It
had
stronger
105
hp
Walter
engine
and
an
open
canopy
.
It:O
had:O
stronger:O
105:product-other
hp:product-other
Walter:product-other
engine:O
and:O
an:O
open:O
canopy:O
.:O