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
card
allows
customers
of
either
library
and
the
libraries
in
the
CLEVNET
network
to
take
out
books
from
both
systems
without
having
to
carry
more
than
one
library
card
.
The:O
card:O
allows:O
customers:O
of:O
either:O
library:O
and:O
the:O
libraries:O
in:O
the:O
CLEVNET:product-software
network:product-software
to:O
take:O
out:O
books:O
from:O
both:O
systems:O
without:O
having:O
to:O
carry:O
more:O
than:O
one:O
library:O
card:O
.:O