With no explanation, label each line with "building-theater", "O", "art-other", "person-other", "art-broadcastprogram", "art-film", "art-music", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
In
2004
,
she
appeared
as
Hilda
Mack
in
Henze
's
``
Elegie
für
junge
Liebende
``
at
the
Berlin
State
Opera
.
In:O
2004:O
,:O
she:O
appeared:O
as:O
Hilda:person-other
Mack:person-other
in:O
Henze:person-other
's:O
``:O
Elegie:art-other
für:art-other
junge:art-other
Liebende:art-other
``:O
at:O
the:O
Berlin:building-theater
State:building-theater
Opera:building-theater
.:O