With no explanation, label each line with "O", "building-theater", "person-artist/author", "art-other", "art-broadcastprogram", "art-film", "art-music", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
As
a
guest
singer
von
Halem
made
his
debut
at
the
Vienna
Staatsoper
in
1978
as
The
Grand
Inquisitor
in
Verdi
's
``
Don
Carlos
``
,
a
role
he
would
reprise
at
San
Francisco
Opera
in
1998
and
the
Paris
Opera
in
2010
.
As:O
a:O
guest:O
singer:O
von:person-artist/author
Halem:person-artist/author
made:O
his:O
debut:O
at:O
the:O
Vienna:building-theater
Staatsoper:building-theater
in:O
1978:O
as:O
The:O
Grand:O
Inquisitor:O
in:O
Verdi:person-artist/author
's:O
``:O
Don:art-other
Carlos:art-other
``:O
,:O
a:O
role:O
he:O
would:O
reprise:O
at:O
San:building-theater
Francisco:building-theater
Opera:building-theater
in:O
1998:O
and:O
the:O
Paris:building-theater
Opera:building-theater
in:O
2010:O
.:O