With no explanation, label each line with "product-car", "O", "person-athlete", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
team
entered
two
BMW
320si
race
cars
,
the
cars
having
previously
been
campaigned
by
Mat
Jackson
.
The:O
team:O
entered:O
two:O
BMW:product-car
320si:product-car
race:O
cars:O
,:O
the:O
cars:O
having:O
previously:O
been:O
campaigned:O
by:O
Mat:person-athlete
Jackson:person-athlete
.:O