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 ":".
Horák
,
policeman
leading
the
prosecution
of
Uzunoglu
.
Horák:O
,:O
policeman:O
leading:O
the:O
prosecution:O
of:O
Uzunoglu:person-other
.:O