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 ":".
Production
of
the
del
Sol
ended
in
1997
,
and
thus
,
the
CR-X
line
was
retired
.
Production:O
of:O
the:O
del:product-car
Sol:product-car
ended:O
in:O
1997:O
,:O
and:O
thus:O
,:O
the:O
CR-X:product-car
line:O
was:O
retired:O
.:O