With no explanation, label each line with "O", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
reverses
of
the
coins
were
designed
by
Christopher
Ironside
.
The:O
reverses:O
of:O
the:O
coins:O
were:O
designed:O
by:O
Christopher:person-other
Ironside:person-other
.:O