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
body
's
identity
became
clear
on
30
April
.
The:O
body:O
's:O
identity:O
became:O
clear:O
on:O
30:O
April:O
.:O