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
also
acted
on
behalf
of
the
Crown
.
It:O
also:O
acted:O
on:O
behalf:O
of:O
the:O
Crown:O
.:O