With no explanation, label each line with "person-soldier", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Ferić
returned
to
No
.
Ferić:person-soldier
returned:O
to:O
No:O
.:O