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 ":".
...
Life
offers
few
pleasures
like
that
of
hearing
Felicity
Lott
and
Valerie
Masterson
singing
on
the
same
stage
''
.
...:O
Life:O
offers:O
few:O
pleasures:O
like:O
that:O
of:O
hearing:O
Felicity:person-artist/author
Lott:person-artist/author
and:O
Valerie:person-artist/author
Masterson:person-artist/author
singing:O
on:O
the:O
same:O
stage:O
'':O
.:O