With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
PlayStation
3
port
is
based
around
the
older
Version
B
revision
.
The:O
PlayStation:product-software
3:product-software
port:product-software
is:O
based:O
around:O
the:O
older:O
Version:O
B:O
revision:O
.:O