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 ":".
It
is
a
set
of
beliefs
,
attitudes
,
norms
,
and
values
used
to
justify
age-based
prejudice
,
discrimination
,
and
subordination
.
It:O
is:O
a:O
set:O
of:O
beliefs:O
,:O
attitudes:O
,:O
norms:O
,:O
and:O
values:O
used:O
to:O
justify:O
age-based:O
prejudice:O
,:O
discrimination:O
,:O
and:O
subordination:O
.:O