With no explanation, label each line with "product-car", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
John
Deere
435
is
a
tractor
that
was
built
for
two
years
,
1959
and
1960
.
The:O
John:product-car
Deere:product-car
435:product-car
is:O
a:O
tractor:product-car
that:O
was:O
built:O
for:O
two:O
years:O
,:O
1959:O
and:O
1960:O
.:O