With no explanation, label each line with "product-car", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
After
the
1999
model
year
,
Mercury
ended
sales
of
the
Tracer
.
After:O
the:O
1999:O
model:O
year:O
,:O
Mercury:organization-company
ended:O
sales:O
of:O
the:O
Tracer:product-car
.:O