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
Learjet
45
is
used
specifically
for
this
purpose
.
The:O
Learjet:product-airplane
45:product-airplane
is:O
used:O
specifically:O
for:O
this:O
purpose:O
.:O