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 ":".
Orr
marketed
the
prints
as
his
own
work
.
Orr:person-artist/author
marketed:O
the:O
prints:O
as:O
his:O
own:O
work:O
.:O