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 ":".
In
fact
,
the
Queen
commissioned
artist
Edwin
Landseer
to
paint
a
portrait
of
Van
Amburgh
and
his
cats
.
In:O
fact:O
,:O
the:O
Queen:O
commissioned:O
artist:O
Edwin:person-artist/author
Landseer:person-artist/author
to:O
paint:O
a:O
portrait:O
of:O
Van:person-artist/author
Amburgh:person-artist/author
and:O
his:O
cats:O
.:O