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
Lada
Samara
introduced
in
1986
sold
less
.
The:O
Lada:product-car
Samara:O
introduced:O
in:O
1986:O
sold:O
less:O
.:O