With no explanation, label each line with "O", "person-artist/author", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
John
Byrum
was
hired
to
write
a
script
.
John:person-artist/author
Byrum:person-artist/author
was:O
hired:O
to:O
write:O
a:O
script:O
.:O