With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
There
are
more
than
100
standards
that
have
been
approved
or
in
development
relating
to
the
smart
grid
.
There:O
are:O
more:O
than:O
100:O
standards:O
that:O
have:O
been:O
approved:O
or:O
in:O
development:O
relating:O
to:O
the:O
smart:O
grid:O
.:O