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 ":".
The
Prosecutor
of
the
Court
opened
an
investigation
on
6
June
2005
.
The:O
Prosecutor:O
of:O
the:O
Court:O
opened:O
an:O
investigation:O
on:O
6:O
June:O
2005:O
.:O