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 ":".
Lady
Gaga
and
Tony
Bennett
provided
entertainment
for
the
group
.
Lady:person-artist/author
Gaga:person-artist/author
and:O
Tony:person-artist/author
Bennett:person-artist/author
provided:O
entertainment:O
for:O
the:O
group:O
.:O