With no explanation, label each line with "product-other", "O", "organization-company", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
Yamaha
PortaSound
VSS-200
is
a
portable
musical
keyboard
released
by
the
Yamaha
Corporation
in
1988
.
The:O
Yamaha:product-other
PortaSound:product-other
VSS-200:product-other
is:O
a:O
portable:O
musical:O
keyboard:O
released:O
by:O
the:O
Yamaha:organization-company
Corporation:organization-company
in:O
1988:O
.:O