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 ":".
The
amendment
,
once
enacted
,
also
ended
the
ban
on
the
monarch
marrying
a
Catholic
.
The:O
amendment:O
,:O
once:O
enacted:O
,:O
also:O
ended:O
the:O
ban:O
on:O
the:O
monarch:O
marrying:O
a:O
Catholic:O
.:O