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 ":".
However
,
royal
assent
is
usually
granted
less
ceremonially
by
letters
patent
.
However:O
,:O
royal:O
assent:O
is:O
usually:O
granted:O
less:O
ceremonially:O
by:O
letters:O
patent:O
.:O