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 ":".
All
of
these
optional
are
available
for
install
straight
from
the
Office
2001
CD
.
All:O
of:O
these:O
optional:O
are:O
available:O
for:O
install:O
straight:O
from:O
the:O
Office:product-software
2001:product-software
CD:product-software
.:O