With no explanation, label each line with "O", "person-artist/author", "art-other", "art-broadcastprogram", "art-film", "art-music", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Uzelac
had
previously
played
with
the
Doerners
in
Helix
.
Uzelac:person-artist/author
had:O
previously:O
played:O
with:O
the:O
Doerners:person-artist/author
in:O
Helix:art-other
.:O