With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
OSCar
synthesizer
was
launched
in
1983
.
The:O
OSCar:product-other
synthesizer:O
was:O
launched:O
in:O
1983:O
.:O